1. Third person singular present indicative of 'imobilizar' with reflexive pronoun 'se'; to become immobile, to freeze in place, or to be rendered unable to move
The animal immobilizes itself when threatened.
O animal imobiliza-se quando ameaçado.
2. To be locked in place or to become fixed and unable to move
The mechanism immobilizes itself automatically after use.
O mecanismo imobiliza-se automaticamente após o uso.
3. In medical contexts: to be put in a cast or immobilized for treatment
The fractured arm immobilizes itself in the cast.
O braço fraturado imobiliza-se no gesso.