gunk

Từ điển WordNet v3.1 - WordNet Dictionary

noun

any thick, viscous matter
• Syn:
sludge, slime, goo, goop, gook,
guck, muck, ooze
• Derivationally related forms:
mucky (for: muck), muck (for: muck), gooey (for: goo), slimy (for: slime), slime (for: slime)
• Hypernyms:
matter
• Hyponyms:
sapropel