CERVIX
cervix, uterine cervix, cervix uteri
(noun) necklike opening to the uterus
neck, cervix
(noun) the part of an organism (human or animal) that connects the head to the rest of the body; “he admired her long graceful neck”; “the horse won by a neck”
Source: WordNet® 3.1
Etymology
Noun
cervix (plural cervixes or cervices)
(anatomy) The neck
The necklike portion of any part, as of the womb.
The lower, narrow portion of the uterus where it joins with the top end of the vagina.
Source: Wiktionary
Cer"vix, n.; pl. E. Cervixes, L. Cervices. Etym: [L.] (Anat.)
Definition: The neck; also, the necklike portion of any part, as of the
womb. See Illust. of Bird.
Source: Webster’s Unabridged Dictionary 1913 Edition