One of the basic norms of the non-sexist use of language is the avoidance of both an ambiguous generic masculine gender in the grammatical forms of nouns and ‘discriminatory expressions which describe women and men in terms of their physical appearance or … the qualities and gender roles attributed to their sex’.
See also: gender-sensitive language
(1) Unesco (1999). Guidelines on Gender-Neutral Language. Available at: http://unesdoc.unesco.org/images/0011/001149/114950mo.pdf; (2) Council of Europe (2007). Recommendation CM/Rec(2007)17 of the Committee of Ministers to Member States on gender equality standards and mechanisms.