hypoplasia hypoplanktonic • hypoplastic · · · Info · Definitions · Characters · · hypoplasia · · Text Latin · · Script 10 · · Length 5 · · Syllables Definitions · · · (noun) underdevelopment of an organ because of a decrease in the number of cells. · · Noun Definition 1 Characters · · a latin small letter a U+0061 h latin small letter h U+0068 i latin small letter i U+0069 l latin small letter l U+006C o latin small letter o U+006F p latin small letter p U+0070 s latin small letter s U+0073 y latin small letter y U+0079