Usage of the character 环

(zoology) segment (of the body of a worm, centipede etc)
(fig.) a part of an integrated whole: aspect (of a project), element (of a policy), sector (of the economy), stage (of a process) etc

liànhuán

链环

[鏈環]

chain link

bìhuán

闭环

[閉環]

closed loop

huándài

环带

[環帶]

clitellum (worm anatomy)

guānghuán

光环

[光環]

ring of light; halo; (fig.) glory; splendor

huánzhù

环住

[環住]

to embrace

huánchéng

环城

[環城]

encircling the city (of walls, ring road etc)
around the city

wānhuán

湾环

[灣環]

twisting river

Huánjiāng

环江

[環江]

Huanjiang Maonanzu autonomous county in Guangxi

liánhuán

连环

[連環]

chain

xúnhuán

循环

[循環]

to cycle
to circulate
circle
loop

huánmù

环幕

[環幕]

360° cinema screen

pèihuán

佩环

[佩環]

ring-like jade belt pendant

kòuhuán

扣环

[扣環]

circlip; C-clip; snap ring; Jesus clip
brooch

lāhuán

拉环

[拉環]

pull tab (on a drink can)
strap handle (on a bus or train)
ring-shaped door handle

huánjiāo

环礁

[環礁]

atoll

huánpíng

环评

[環評]

environmental impact assessment (EIA)
abbr. for 環境影響評估／环境影响评估

tónghuán

铜环

[銅環]

brass ring
door knocker

huánqiú

环球

[環球]

around the world
worldwide

diàohuán

吊环

[吊環]

rings (gymnastics)

gōuhuán

钩环

[鉤環]

shackle (U-shaped link)

zhǔhuán

主环

[主環]

primary ring

shànghuán

上环

[上環]

(coll.) to be fitted with an IUD; (of a doctor) to insert an IUD

huánbǎo

环保

[環保]

environmental protection
environmentally friendly
abbr. for 環境保護／环境保护 (huánjìngbǎohù)

Huán Fǎ

环法

[環法]

Tour de France cycle race
abbr. for 環法自行車賽／环法自行车赛

huándǎo

环岛

[環島]

traffic circle; rotary; roundabout
to travel around an island

huánbǐ

环比

[環比]

(statistics) period on period (i.e. "month on month" or "quarter on quarter" etc, depending on the context)

tiěhuán

铁环

[鐵環]

an iron ring

huánxiāng

环香

[環香]

incense coil

huángū

环箍

[環箍]

a hoop

yuánhuán

圆环

[圓環]

ring (any circular object)
(math.) annulus
(Tw) traffic circle; rotary

huánwéi

环围

[環圍]

to form a ring around

Lùhuán

路环

[路環]

Coloane, an island of Macao

huánchèn

环衬

[環襯]

endpaper

huánxiàn

环线

[環線]

ring road
circle line (e.g. rail or subway)

huánchuàng

环创

[環創]

eye-catching décor for young children (in classrooms, libraries etc) (posters, mobiles, murals etc) (abbr. for 環境創設／环境创设 (huánjìngchuàngshè))

Zhōnghuán

中环

[中環]

Central, Hong Kong Island

wǔhuán

五环

[五環]

five rings
pentacyclic (chemistry)

huánrào

环绕

[環繞]

to surround
to circle
to revolve around

huāhuán

花环

[花環]

garland
floral hoop

huángù

环顾

[環顧]

to look around
to survey

ménhuán

门环

[門環]

door knocker (in the shape of a ring)

yāhuan

丫环

[丫環]

servant girl
maid

huánxíng

环形

[環形]

ring-shaped
(math.) annulus

huánzhuàng

环状

[環狀]

annular
toroidal
loop-shaped
ring-like

bíhuán

鼻环

[鼻環]

nose ring

zhǐhuán

指环

[指環]

(finger) ring

Huǒhuán

火环

[火環]

Ring of Fire (circum-Pacific seismic belt)

huányóu

环游

[環遊]

to travel around (the world, a country etc)

huántīng

环烃

[環烴]

cyclic hydrocarbon (i.e. involving benzene ring)

huánmiàn

环面

[環面]

ring surface
annulus
torus (math.)

huánjī

环肌

[環肌]

circular muscle

huánwèi

环卫

[環衛]

public cleanliness
(urban) sanitation
environmental sanitation
abbr. for 環境衛生／环境卫生 (huánjìngwèishēng)

záhuán

杂环

[雜環]

heterocyclic (chemistry)

huánqiúhuà

环球化

[環球化]

globalization

fāngxiānghuán

芳香环

[芳香環]

benzene ring (chemistry)
aromatic ring

xúnhuánsài

循环赛

[循環賽]

round-robin tournament

huánwántīng

环烷烃

[環烷烴]

cycloalkane

fújìhuán

符记环

[符記環]

token ring (computing)

liùhuánlù

六环路

[六環路]

Sixth ring road (Beijing), opened in 2008

xúnhuánjié

循环节

[循環節]

recurring section of a rational decimal

sìhuánsù

四环素

[四環素]

tetracycline

dàhuánjìng

大环境

[大環境]

the environment (from a macro perspective); the broader context; the bigger picture

xúnhuánxìng

循环性

[循環性]

cyclical
cyclic
circulatory
recurrent
recursive
cyclicity

huánbǎojú

环保局

[環保局]

environment protection office
PRC National bureau of environmental protection

Huánbǎobù

环保部

[環保部]

Ministry of Environmental Protection

huánbǎoxíng

环保型

[環保型]

environmental
environmentally friendly

Huáncuìqū

环翠区

[環翠區]

Huancui district of Weihai city 威海市, Shandong

hùkǒnghuán

护孔环

[護孔環]

(Tw) grommet

bǐnghuánzuò

丙环唑

[丙環唑]

propiconazole (antifungal agent)

jiǔliánhuán

九连环

[九連環]

Chinese rings, a brainteaser toy consisting of nine rings interlocked on a looped handle, the objective being to remove the rings from the handle

biànjiāohuán

变焦环

[變焦環]

(photography) focus ring

bìyùnhuán

避孕环

[避孕環]

coil
contraceptive coil
intrauterine device

liánhuánhuà

连环画

[連環畫]

lianhuanhua (graphic novel)

huánbǎokuài

环保筷

[環保筷]

reusable chopsticks (Tw)

Lǐ Ruìhuán

李瑞环

[李瑞環]

Li Ruihuan (1934-), former Chinese politician

huìliúhuán

汇流环

[匯流環]

slip-ring
rotary electrical interface
collector ring

bèiyònghuán

备用环

[備用環]

backup ring

rìhuánshí

日环食

[日環食]

an annular eclipse of the sun

Huánjiāngxiàn

环江县

[環江縣]

Huanjiang Maonan autonomous county in Hezhou 賀州／贺州 ( Hèzhōu), Guangxi

huánjǐnghéng

环颈鸻

[環頸鴴]

(bird species of China) Kentish plover (Charadrius alexandrinus)

wàihuánxiàn

外环线

[外環線]

outer ring (road or rail line)

lìngpáihuán

令牌环

[令牌環]

token ring

liánhuántú

连环图

[連環圖]

comic strip

jìfēnhuán

计分环

[計分環]

scoring ring (on shooting target)

Yáng Yùhuán

杨玉环

[楊玉環]

Yang Yuhuan, aka Yang Guifei 楊貴妃／杨贵妃 ( Yáng Guìfēi) (719-756), famous Tang beauty, consort of Emperor Xuanzhong 唐玄宗 ( Táng Xuánzōng)

Yùhuánxiàn

玉环县

[玉環縣]

Yuhuan county in Taizhou 台州 ( Tāizhōu), Zhejiang

zǐgōnghuán

子宫环

[子宮環]

intrauterine device (IUD)

huánxínglù

环形路

[環形路]

circular road
circuit

huánwùxī

环戊烯

[環戊烯]

cyclopentene C5H8 (ring of five carbon atoms)

zhīhuántīng

脂环烃

[脂環烴]

alicyclic hydrocarbon (i.e. involving ring other than benzene ring)

liánhuánjì

连环计

[連環計]

interlocked stratagems
CL:條／条 (tiáo)

huánxíngshān

环形山

[環形山]

crater
ring-shaped mountain

huánbǎotīng

环保厅

[環保廳]

(provincial) department of environmental protection

shèhuìhuánjìng

社会环境

[社會環境]

social environment; milieu

lángkěnxúnhuán

郎肯循环

[郎肯循環]

Rankine cycle (engineering)

huánqiúlüxíng

环球旅行

[環球旅行]

journey around the world

huánjìngbǎohù

环境保护

[環境保護]

environmental protection

huányǎngshùzhī

环氧树脂

[環氧樹脂]

epoxy resin (chemistry)

huánjiédòngwù

环节动物

[環節動物]

annelid (worm)

dàqìhuánliú

大气环流

[大氣環流]

atmospheric circulation

huánxínggōnglù

环形公路

[環形公路]

ring road
beltway

wēnyánhuánliú

温盐环流

[溫鹽環流]

thermohaline circulation (oceanography)

bāopíhuánqiē

包皮环切

[包皮環切]

circumcision

jiécǎoxiánhuán

结草衔环

[結草銜環]

to repay sb's kind acts (idiom)

běnhuánlìdìng

苯环利定

[苯環利定]

phencyclidine (PCP)

yùnsuànhuánjìng

运算环境

[運算環境]

operating environment

huánjìngchuàngshè

环境创设

[環境創設]

design of a learning environment for young children, incorporating artwork designed to appeal to them (abbr. to 環創／环创 (huánchuàng))

zhèngyádàihuán

正牙带环

[正牙帶環]

orthodontic brace

huánbǎozhǔyì

环保主义

[環保主義]

environmentalism

xúnhuánxiǎoshù

循环小数

[循環小數]

recurring decimal

zuòyèhuánjìng

作业环境

[作業環境]

operating environment

shēngcúnhuánjìng

生存环境

[生存環境]

habitat; living environment

shēngtàihuánjìng

生态环境

[生態環境]

ecosystem
natural environment

wǎnglùhuánjìng

网路环境

[網路環境]

network environment

kāifāhuánjìng

开发环境

[開發環境]

development environment (computer)

xūnǐhuánjìng

虚拟环境

[虛擬環境]

virtual environment

èxìngxúnhuán

恶性循环

[惡性循環]

vicious circle

huánlínxiān'àn

环磷酰胺

[環磷酰胺]

cyclophosphamide (medication)

huánjìngwūrǎn

环境污染

[環境污染]

environmental pollution

Huán Tàipíngyáng

环太平洋

[環太平洋]

Pacific Rim

huánjíwōxuán

环极涡旋

[環極渦旋]

circumpolar vortex

xúnhuánxìtǒng

循环系统

[循環系統]

circulatory system

xúnhuánshǐyòng

循环使用

[循環使用]

recycle
to use in cyclic order

huánbǎodòushì

环保斗士

[環保鬥士]

an environmental activist
a fighter for environmental protection

huánbǎokēxué

环保科学

[環保科學]

environmental science

huánxiùshānzhuāng

环秀山庄

[環秀山莊]

Mountain Villa with Embracing Beauty in Suzhou, Jiangsu

huánjìngwèishēng

环境卫生

[環境衛生]

environmental sanitation
abbr. to 環衛／环卫 (huánwèi)

chújúhuāhuán

雏菊花环

[雛菊花環]

daisy chain
chain sinnet

xuèyèxúnhuán

血液循环

[血液循環]

blood circulation

xiǎnxiànghuánshēng

险象环生

[險象環生]

dangers spring up all around (idiom); surrounded by perils

huányǎngyǐwán

环氧乙烷

[環氧乙烷]

ethylene oxide

huánjìngyǐngxiǎng

环境影响

[環境影響]

environmental impact

huánhuánxiāngkòu

环环相扣

[環環相扣]

closely linked with one another
interlocked
to interrelate

liángxìngxúnhuán

良性循环

[良性循環]

virtuous cycle (i.e. positive feedback loop)

cāozuòhuánjìng

操作环境

[操作環境]

operating environment

huánzhuànglièshí

环状列石

[環狀列石]

circular standing stones

lìngpáihuánwǎng

令牌环网

[令牌環網]

token ring network

huánjìngyīnsù

环境因素

[環境因素]

environmental factor

guānmàixúnhuán

冠脉循环

[冠脈循環]

coronary circulation

Huánqiú Chàngpiàn

环球唱片

[環球唱片]

Universal Records

Huánqiú Shíbào

环球时报

[環球時報]

Global Times (weekly digest of international news from People's Daily 人民日報／人民日报 ( Rénmín Rìbào))

ránliàoxúnhuán

燃料循环

[燃料循環]

fuel cycle

liánhuánshāshǒu

连环杀手

[連環殺手]

serial killer

huángùsìzhōu

环顾四周

[環顧四周]

to look around

huánwèigōngrén

环卫工人

[環衛工人]

sanitation worker

huánjìngwēndù

环境温度

[環境溫度]

environmental temperature

wǔhuánhuìhuī

五环会徽

[五環會徽]

Olympic rings

bóruòhuánjié

薄弱环节

[薄弱環節]

weak link
loophole

xúnhuánlùnzhèng

循环论证

[循環論證]

circular argument
logical error consisting of begging the question
Latin: petitio principii

huánxíngjiégòu

环形结构

[環形結構]

ring configuration

huánjìngsǔnhài

环境损害

[環境損害]

environmental damage

wǎngluòhuánjìng

网络环境

[網絡環境]

network environment

diànzǐhuánbǎotíng

电子环保亭

[電子環保亭]

"electrical junk center", site for reprocessing of old electrical and electronic equipment

huánjiédòngwùmén

环节动物门

[環節動物門]

Annelidan, the phylum of annelid worms

huánjǐngshānzhègū

环颈山鹧鸪

[環頸山鷓鴣]

(bird species of China) hill partridge (Arborophila torqueola)

huánbǎozhǔyìzhě

环保主义者

[環保主義者]

environmentalist

fēnbùshìhuánjìng

分布式环境

[分佈式環境]

distributed environment (computing)

shēngtàihuánjìngyóu

生态环境游

[生態環境游]

ecotourism

Huánjìng Bǎohùbù

环境保护部

[環境保護部]

(PRC) Ministry of Environmental Protection (MEP)

níngméngsuānxúnhuán

柠檬酸循环

[檸檬酸循環]

citric acid cycle
Krebs cycle
tricarboxylic acid cycle

bāopíhuánqiēshù

包皮环切术

[包皮環切術]

circumcision

huánqiúdìngwèixìtǒng

环球定位系统

[環球定位系統]

global positioning system (GPS)

huánjìngyǐngxiǎngpínggū

环境影响评估

[環境影響評估]

environmental impact assessment EIA
abbr. to 環評／环评

huánjìngxíngdòngzhǔyì

环境行动主义

[環境行動主義]

environmentalism
environmental activism

Guójiā Huánbǎo Zǒngjú

国家环保总局

[國家環保總局]

(PRC) State Environmental Protection Administration (SEPA), former incarnation (until 2008) of 環境保護部／环境保护部 ( Huánjìng Bǎohùbù)

Huánqiú Yīnyuè Jítuán

环球音乐集团

[環球音樂集團]

Universal Music Group

Huán Bóhǎi Wān Dìqū

环渤海湾地区

[環渤海灣地區]

Bohai Economic Rim (economic region including Beijing, Tianjin, Hebei, Liaoning and Shandong)

Huán Fǎ Zìxíngchēsài

环法自行车赛

[環法自行車賽]

Tour de France cycle race

Suǒ'ěrzībólǐshíhuán

索尔兹伯里石环

[索爾茲伯里石環]

Stonehenge
Salisbury stone circle

Bāshí Tiān Huányóu Dìqiú

八十天环游地球

[八十天環遊地球]

Around the World in Eighty Days by Jules Verne 儒勒·凡爾納／儒勒·凡尔纳 ( Rúlè· Fán'ěrnà)

Huán Tàipíngyáng Dìzhèndài

环太平洋地震带

[環太平洋地震帶]

Ring of Fire (circum-Pacific seismic belt)

Zhōngguó Guójiā Huánbǎojú

中国国家环保局

[中國國家環保局]

PRC State Environmental Protection Administration (SEPA)

Huán Tàipíngyáng Huǒshāndài

环太平洋火山带

[環太平洋火山帶]

Ring of Fire (circum-Pacific seismic belt)

kèhùjīfúwùqìhuánjìng

客户机服务器环境

[客戶機服務器環境]

client-server environment

Tiānjīn Huánqiú Jīnróng Zhōngxīn

天津环球金融中心

[天津環球金融中心]

Tianjin World Financial Center, skyscraper a.k.a. the Tianjin Tower or Jin Tower
abbr. to 津塔 ( Jīntǎ)

Liánhéguó Huánjìng Guīhuàshǔ

联合国环境规划署

[聯合國環境規劃署]

United Nations Environment Program (UNEP)

Shànghǎi Huánqiú Jīnróng Zhōngxīn

上海环球金融中心

[上海環球金融中心]

Shanghai World Financial Center (SWFC), skyscraper

Huánjiāng Máonánzú Zìzhìxiàn

环江毛南族自治县

[環江毛南族自治縣]

Huanjiang Maonan autonomous county in Hezhou 賀州／贺州 ( Hèzhōu), Guangxi

Běijīng Huánqiú Jīnróng Zhōngxīn

北京环球金融中心

[北京環球金融中心]

Beijing World Financial Center, skyscraper

Zhōngguó Guójiā Huánjìng Bǎohù Zǒngjú

中国国家环境保护总局

[中國國家環境保護總局]

PRC State Environmental Protection Administration (SEPA)