feminine singular of fraco

Superseded spelling of interação fraca. (Superseded in Brazil by the 1943 spelling reform and by the Portuguese Language Orthographic Agreement of 1990 elsewhere. Still used in countries where the agreement hasn’t come into effect.)

(physics) weak interaction

(physics) weak nuclear interaction

Superseded spelling of interação nuclear fraca. (Superseded in Brazil by the 1943 spelling reform and by the Portuguese Language Orthographic Agreement of 1990 elsewhere. Still used in countries where the agreement hasn’t come into effect.)

the flesh is weak (people are unable to completely refrain from sinning)

the spirit is willing but the flesh is weak (achieving something is made impossible by frailty)

feminine plural of fraco