lactobacillus Lactobacillus • lactobutyrometer · · · Info · Definitions · Characters · · lactobacillus · · Text Latin · · Script 13 · · Length Definitions · · · (noun) a Gram-positive rod-shaped bacterium that produces lactic acid (especially in milk). · · Noun Definition 1 Characters · · a latin small letter a U+0061 b latin small letter b U+0062 c latin small letter c U+0063 i latin small letter i U+0069 l latin small letter l U+006C 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