Transient masculinization

Transient masculinization (or transient virilization) is a biological phenomenon in which female individuals of certain species temporarily exhibit physical or behavioral traits typically associated with males. Unlike permanent masculinization, which results in lifelong male-like characteristics, transient masculinization is limited to specific developmental stages or life events and often regresses over time.

Source: Wikipedia — Transient masculinization (CC BY-SA 4.0)