failure to thrivefailure to thrive
(usually uncountable, plural failures to thrive)
- Used other than as an idiom: see failure,"Ž thrive.
- (uncountable, pediatrics) Poor physical growth or level of weight, relative to one's age peers.
- (uncountable, medicine, chiefly geriatrics) Abnormal weight loss, malaise.
- (countable, medicine) Instances of poor physical growth or of abnormal weight loss.