impetus
US /ˈɪm.pə.t̬əs/
UK /ˈɪm.pə.t̬əs/

1.
ímpetu, impulso
the force or energy with which a body moves
:
•
The ball gathered impetus as it rolled down the hill.
La pelota ganó ímpetu al rodar cuesta abajo.
•
The rocket gained impetus as it ascended.
El cohete ganó ímpetu al ascender.
2.
impulso, estímulo, motivación
the force that makes something happen or happen more quickly
:
•
His speech gave new impetus to the reform movement.
Su discurso dio un nuevo impulso al movimiento reformista.
•
The discovery provided fresh impetus for scientific research.
El descubrimiento proporcionó un nuevo impulso para la investigación científica.