WordReference Random House Unabridged Dictionary of American English © 2025
rob•o•rant
(rob′ər ənt),USA pronunciation [Med.]
adj.
n.
adj.
- Medicinestrengthening.
n.
- Medicinea tonic.
- Latin rōborant- (stem of rōborāns), present participle of rōborāre to strengthen, equivalent. to rōbor- (stem of rōbur) oak, hardness + -ant- -ant
- 1655–65