fem

adjective2

1. •
   (informal) Feminine, effeminate.
2. •
   Synonym of femme.

   • Dozens of queers, including female to male/male to female transsexuals, leathers, bears and bisexuals, butch and fem lesbians, […] — 2007

noun2

1. •
   (informal, offensive) A feminine or effeminate person.

   • Versatile, but love to bottom … No divas or fems. Not homophobic at all, just my personal preference. — 2014
2. •
   Synonym of femme.

adjective1

1. •
   Abbreviation of feminine.

noun2

1. •
   Abbreviation of feminine (word or form of the feminine grammatical gender).
2. •
   Abbreviation of femoral.

   • Fem. nerve […] Fem. artery [figure labels] — 1951

noun3

1. •
   Initialism of finite element method.
2. •
   Initialism of field emission microscopy.
3. •
   Initialism of front end module.