orifice Synonyms

opening porta fly trap rent rift slit slot space spiracle split pyloric propylon pore perforation peephole passage outlet outfall os stoma stomatous Holes jaws perianal preanal reactance openings pores passages embouchement blastoporic tuyere vent yap nosepiece stomatal anoperineal anorectal blastoporal nozzle muzzle cleft crack crevice debouchure delta dewlap diaphragm door chink