female-to-male

1. not comparableTransmasculine; transitioning or having transitioned (in gender identity or presentation, physically, etc) from being female to being male.

   Synonyms: FtM, FTM, F2M

2. not comparablebusinessThat changes a female end (usually a socket) of a connection into a male one (with pins, usually a plug).

   Antonyms: male-to-female

3. not comparableUsed other than figuratively or idiomatically: see female, to, male.

   The female-to-male ratio is 5-to-3.

plural female-to-males

1. A female-to-male transgender person; a trans man.

   The lack of a crossgender peer group is a gaping reality for most female-to-males. While all transvestites/transsexuals are a hidden minority, the female-to-males are an even more hidden minority within that minority.

   1980, Louis Sullivan, Information for the Female-to-male