共焦

gòngjiāo
confocal (math.)

CEDICT

math

Entry Composition

1 共 gòng
  1. common
  2. general
  3. to share
  4. together
  5. total
  6. altogether
  7. abbr. for 共产党 Gòngchǎndǎng, Communist party
2 焦 jiāo
  1. burnt
  2. scorched
  3. charred
  4. worried
  5. anxious
  6. coke
  7. joule (abbr. for 焦耳 jiāoěr)