黑洞

Traditional form:

黑洞

Pinyin (reading):

hēidòng

Definitions:

• (astronomy) black hole

Characters:

• 黑 - black; dark; evil, sinister
• 洞 - cave, grotto, hole, ravine

Traditional characters:

• 黑 - black; dark; evil, sinister
• 洞 - cave, grotto, hole, ravine