单词	maxilla
释义	maxilla /makˈsɪlə / noun (plural maxillae /makˈsɪliː/) Anatomy & Zoology 1The jaw or jawbone, specifically the upper jaw in most vertebrates. In humans it also forms part of the nose and eye socket.There are five large teeth on the maxillae (upper jaw bone), rather short canines, and at least twenty small and uniform post-canines.... Anteriorly, the ventral margin of the maxilla curves dorsally. Two major bones of the upper jaw, the maxilla, and the premaxilla, were previously firmly attached to the skull and had teeth. 1.1(In many arthropods) each of a pair of mouthparts used in chewing.First, Protohadros has a very large pair of maxillae.... Behind the mandibles, Mandibulata bear one, or more typically, two pairs of maxillae, frequently with a long palp, as in the second maxilla of Macrocyclops. The mouthparts consist of a pair of mandibles and 2 pairs of maxillae. Origin Late Middle English: from Latin, 'jaw'.
随便看	unnecessitating unnecessity unneeded unneedful unneedfully unneedy unneglected unnegligent unnegotiable unneighboured unneighbourliness unneighbourly unnerve unnervingly unnest unnested unnestle unnetted unneutered unneutral unneutralized unnewsed unniche unnicked unniggardly

英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。