b horizon b complex • b lymphocyte · · · Info · Definitions · Characters · · b horizon · · Text Common · · Latin · · Scripts 9 · · Length 4 · · Syllables Definitions · · · (noun) immediately below the A-horizon; contains deposits of organic matter leached from surface soils. Synonyms: B-horizon, B horizon. · · Noun Definition 1 Characters · · space U+0020 b latin small letter b U+0062 h latin small letter h U+0068 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 z latin small letter z U+007A