1. next to or adjoining something else, especially so as to be touching
The two adjacent rooms share a wall.
Os dois quartos adjacentes compartilham uma parede.
3. in geometry, denoting an angle or side of a triangle that is next to a given angle or side
In a right triangle, the adjacent side is next to the angle of interest.
Em um triângulo retângulo, o lado adjacente está próximo ao ângulo de interesse.