- one of a pair of bones of the upper jaw of vertebrates, situated in front of and between the maxillary bones.
Origin of premaxilla
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Examples from the Web for premaxillary
In specimens of woodfordi and melanops examined by me, the premaxillary bones are in contact.
In M. aurantius the premaxillary bones are not in contact, and it differs from woodfordi in several other respects.
The numbers of maxillary, premaxillary, and vomerine teeth are summarized in Table 5.Neotropical Hylid Frogs, Genus Smilisca
William E. Duellman
The nasal bone extends caudad as far as does the premaxillary; they terminate at the anterior border of the orbit.
The premaxillary bone, which constitutes most of the anterior part of the rostrum, is typically heteromyid in shape.
- either of two bones situated in the upper jaw between the maxillary bones
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
- Either of two bones located in front of and between the maxillary bones in the upper jaw of vertebrates.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.