The odontoid vertebra or axis; the second cervical vertebra: so called from the odontoid or tooth-like process which forms a pivot about which the atlas turns. See cut under axis.(noun)
The Century Dictionary (Public Domain)
Use "dentata" in a sentence
"A spiky design that looks like teeth (I don't know if you knew this, but vagina dentata is Latin for "sexypants.")"
"One of the best parts of this painting is a ghostly erection poking out of a vagina dentata, which is ejaculating a spermy ghost of Abraham Lincoln."
"The American chestnut (Castanea dentata) was once one of the dominant trees of eastern North American forests."