Open orifice Synonyms

Open replaced

available orifice

visible orifice

Definitions for Open

(adjective) allowing passage without obstruction
(adjective) freely available for use or participation by all
(adjective) being in a situation where one is likely to meet with harm

OO abbreviation

OO is an abbreviation for Open Orifice

What does OO stand for?

OO stands for "Open Orifice"

Orifice replaced

open aperture

Definitions for Orifice

(noun) a place in a surface allowing passage into or through a thing
(noun) an aperture or hole that opens into a bodily cavity