premaxilla
noun
one of a pair of bones of the upper jaw of vertebrates, situated in front of and between the maxillary bones.
premaxillae
-
pluralof premaxilla.plural
The grammatical form denoting more than one person, place, thing, or idea.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
During the evolution of early birds, the premaxillae stretched out and fused together to form a strong, lightweight beak.
From New York Times ● May 12, 2015
Dr. Bhullar and Dr. Abzhanov set out to find some of the genetic changes that turned the dinosaur premaxillae into a beak.
From New York Times ● May 12, 2015
That change might have allowed birds to develop big, fused premaxillae — the precursors of beaks.
From New York Times ● May 12, 2015
Fgf8, for example, disappears from the region that will become the face long before the premaxillae develop.
From New York Times ● May 12, 2015
The anterior spine of the palatine approaches the posterior projection of the premaxillae more closely as age increases and, in the oldest vole is firmly attached and forms a complete partition separating the incisive foramina.
From A Population Study of the Prairie Vole (Microtus ochrogaster) in Northeastern Kansas by Edwin P. Martin
