costa
1. a riblike part of a plant or animal (such as a middle rib of a leaf or a thickened vein of an insect wing) • Derivationally related forms: costal • Hypernyms: structure, anatomical structure, complex body part, bodily structure, body structure 2. any of the 12 pairs of curved arches of bone extending from the spine to or toward the sternum in humans (and similar bones in most vertebrates) • Syn: rib • Derivationally related forms: costal • Topics: vertebrate, craniate • Hypernyms: bone, os • Hyponyms: true rib • Part Holonyms: vertebrate, craniate • Part Meronyms: costal cartilage
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