midline mid-life • mid-line · · · Info · Definitions · Synonyms · Characters · · midline · · Text Latin · · Script 7 · · Length 2 · · Syllables Definitions · · · (noun) the median plane of the body (or some part of the body). Synonyms: midplane. · · Noun Definition 1 Synonyms · · · midplane · · Synonym 1 Characters · · d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D n latin small letter n U+006E