foetus foetoscopy • fog · · · Info · Definitions · Synonyms · Characters · · foetus · · Text Latin · · Script 6 · · Length 3 · · Syllables Definitions · · · (noun) an unborn or unhatched vertebrate in the later stages of development showing the main recognizable features of the mature animal. Synonyms: fetus. · · Noun Definition 1 Synonyms · · · fetus · · Synonym 1 Characters · · e latin small letter e U+0065 f latin small letter f U+0066 o latin small letter o U+006F s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075