spasm
US /ˈspæz.əm/
UK /ˈspæz.əm/

1.
espasmo, cãibra
a sudden, involuntary muscular contraction or convulsive movement
:
•
The sudden cold water caused a spasm in his leg.
A água fria repentina causou um espasmo na perna dele.
•
She experienced a painful muscle spasm in her back.
Ela sentiu um espasmo muscular doloroso nas costas.