masculinize

1. To give a masculine appearance or character to.
2. To cause (a female) to assume masculine characteristics, as through hormonal imbalance or male hormone therapy.

1. To give a masculine appearance or character to.
2. To cause a female to assume masculine characteristics, as through hormonal imbalance.

To produce masculine qualities in the female or in the sexually maturing male.

The verb has 2 meanings:

Meaning #1: give a masculine appearance or character to

Meaning #2: produce virilism in or cause to assume masculine characteristics, as through a hormonal imbalance or hormone therapy
  Synonyms: masculinise, virilize, virilise