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Pectoral Girdle , pectoral girdle (shoulder girdle) The bony or cartilaginous structure in vertebrates to which the anterior limbs (pectoral fins, forelegs, or arms) a… Structure , structure, social structure A term loosely applied to any recurring pattern of social behaviour; or, more specifically, to the ordered interrelations… osteology , os·te·ol·o·gy / ˌästēˈäləjē/ • n. the study of the structure and function of the skeleton and bony structures. DERIVATIVES: os·te·o·log·i·cal / ˌästē… Columella , columella
1. In corals, a rod-like structure formed from the swollen axial end of the counter-septum that may occur as a central structure within the… myology , my·ol·o·gy / mīˈäləjē/ • n. the study of the structure, arrangement, and action of muscles. DERIVATIVES: my·o·log·i·cal / ˌmīəˈläjikəl/ adj. my·ol·o·… Abutment , a·but·ment / əˈbətmənt/ • n. a structure built to support the lateral pressure of an arch or span, e.g., at the ends of a bridge. ∎ the process of su…
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sustentaculum