orifice

US /ˈɔːr.ə.fɪs/
UK /ˈɔːr.ə.fɪs/
"orifice" picture
1.

opening, monding

a mouth or aperture, as of a tube or pipe, or of a cavity in the body

:
The surgeon carefully examined the small orifice.
De chirurg onderzocht zorgvuldig de kleine opening.
Water flowed out of the narrow orifice.
Water stroomde uit de smalle opening.