convex shape

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a shape that curves or bulges outward
• Syn:
convexity
• Derivationally related forms:
convex (for: convexity)
• Hypernyms:
solid
• Hyponyms:
umbo, camber, entasis, node, knob,
knob, ridge, point, tip, peak,
taper, projection