nubble

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a small lump or protuberance
• Syn:
nub
• Derivationally related forms:
nubbly, nubby (for: nub)
• Hypernyms:
bulge, bump, hump, swelling, gibbosity,
gibbosity, jut, prominence, protuberance, protrusion,
extrusion, excrescence