fontanel fontally • fontange · · · Info · Definitions · Synonyms · Characters · · fontanel · · Text Latin · · Script 8 · · Length Definitions · · · (noun) any membranous gap between the bones of the cranium in an infant or fetus. Synonyms: fontanelle, soft spot. · · Noun Definition 1 Synonyms · · · fontanelle · · Synonym 1 soft spot · · Synonym 2 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 f latin small letter f U+0066 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F t latin small letter t U+0074