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orifice, n.
(orifices)
freq. cnt. 2
more info an aperture or hole that opens into a bodily cavity
<noun.body>   freq. cnt.: 2 freq. cnt.: 2

opening orifice porta

sample sentences

"the orifice into the aorta from the lower left chamber of the heart"
lexical pointers
derivationally related form
open open
semantic pointers
hyponym
vent blastopore aortic orifice stoma porta hepatis spiracle mouth os cervix, uterine cervix, cervix uteri fenestra cardia introitus urethral orifice, external orifice pylorus anus fontanelle, fontanel, soft spot naris rima
hypernym
passage, passageway