(in many mammals) a bony ridge on the top of the skull to which the jaw muscles are attached.
〔动〕（许多哺乳动物的）矢状脊，箭头形顶部
Example sentencesExamples
The skulls of members of this family lack sagittal crests.
A low sagittal crest extends from the supraorbital ridges to the parietal region.
Also, a sagittal crest on the fossil Amblycoptus and Kordosia skulls has been reported.
The pronounced ridge, called a sagittal crest, on the skull that Ammann found in 1996 is thought to be formed to support large jaw muscles, an indication of large body size.
They lack a sagittal crest, but prominent ridges often run along the parietals.
Definition of sagittal crest in US English:
sagittal crest
noun
Zoology
(in many mammals) a bony ridge on the top of the skull to which the jaw muscles are attached.
〔动〕（许多哺乳动物的）矢状脊，箭头形顶部
Example sentencesExamples
A low sagittal crest extends from the supraorbital ridges to the parietal region.
Also, a sagittal crest on the fossil Amblycoptus and Kordosia skulls has been reported.
The skulls of members of this family lack sagittal crests.
They lack a sagittal crest, but prominent ridges often run along the parietals.
The pronounced ridge, called a sagittal crest, on the skull that Ammann found in 1996 is thought to be formed to support large jaw muscles, an indication of large body size.