切线

Traditional form:

切線

Pinyin (reading):

qiēxiàn

Definitions:

• tangent line (geometry)

Characters:

• 切 - to cut, to mince, to slice, to carve; close to; eager
• 线 - line, thread, wire; clue, trail

Traditional characters:

• 切 - to cut, to mince, to slice, to carve; close to; eager
• 線 - line, thread, wire; clue, trail