Distinguishing characteristics (especially in different species of a genus).

Roget 15: difference; variance, variation, variety; diversity, dissimilarity etc. 18; disagreement etc. 24; disparity etc. (inequality) 28; distinction, contradistinction; alteration.    modification, permutation, moods and tenses.    nice distinction, fine distinction, delicate distinction, subtle distinction; shade of difference, nuance; discrimination etc. 465; differentia.    different thing, something else, apple off another tree, another pair of shoes; horse of a different color; this that or the other.    ... show more

Roget 79: speciality, specialite^†; individuality, individuity^†; particularity, peculiarity; idiocrasy etc. (tendency) 176; personality, characteristic, mannerism, idiosyncrasy; specificness etc. adj.^†; singularity etc. (unconformity) 83; reading, version, lection; state; trait; distinctive feature; technicality; differentia.    particulars, details, items, counts; minutiae.    I, self, I myself; myself, himself, herself, itself.    ... show more

Polish: differentia specifica