Orifice

дюза

djuza

(mouth or aperture, as of a tube, pipe)

жигльор

žigljor

(mouth or aperture, as of a tube, pipe)

отверстие

otverstie

(mouth or aperture, as of a tube, pipe)

отвор

otvor

(mouth or aperture, as of a tube, pipe)

проход

prohod

(mouth or aperture, as of a tube, pipe)

устие

ustie

(mouth or aperture, as of a tube, pipe)

щуцер

štucer

(mouth or aperture, as of a tube, pipe)