bottom rot bottom-road bridge • bottom rot fungus · · · Info · Definitions · Characters · · bottom rot · · Text Common · · Latin · · Scripts 10 · · Length 3 · · Syllables Definitions · · · (noun) fungous disease of lettuce that first rots lower leaves and spreads upward. Synonyms: bottom rot. · · Noun Definition 1 Characters · · space U+0020 b latin small letter b U+0062 m latin small letter m U+006D o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074