blowhole blowhard • blowiness · · · Info · Definitions · Synonyms · Characters · · blowhole · · Text Latin · · Script 8 · · Length Definitions · · · (noun) the spiracle of a cetacean located far back on the skull. · · Noun Definition 1 (noun) a hole for the escape of gas or air. Synonyms: vent, venthole, vent-hole. · · Noun Definition 2 Synonyms · · · vent · · Synonym 1 venthole · · Synonym 2 vent-hole · · Synonym 3 Characters · · b latin small letter b U+0062 e latin small letter e U+0065 h latin small letter h U+0068 l latin small letter l U+006C o latin small letter o U+006F w latin small letter w U+0077