The term gender refers to various forms of expressing biological or sociological gender by inflecting words. Nouns, pronouns, articles and the adjectives denote the gender of their referent. (http://en.wikipedia.org/wiki/Grammatical_gender 17.11.06) Category based on (depending on languages) the natural distinction between sex and formal criteria. (http://www.isocat.org/datcat/DC-1297)