See Also: Weigh in - Horse Racing(gambling)
Weigh Out - Horse Racing(gambling)
Weigh in (Out) - Horse Racing(gambling)
Amphoteric(medicine)
amphoteric(dictionary)
amphoteric reaction(medicine)
amphoteric electrolyte(medicine)
amphoteric element(medicine)
gambling(medicine)
gambling(encyclopedia)

Weigh in (Out) - Horse Racing (gambling) and amphoteric (iou)


Weigh in (Out) - Horse Racing (gambling)


The certification, by the clerk of scales, of a rider' s weight before (after) a race. A jockey weighs in fully dressed with all equipment except for his/her helmet, whip and (in many jurisdictions) flak jacket.

amphoteric (iou)



amphoteric adjective. M19.
[from Greek amphoteros compar. of ampho both + -IC.]
Acting both ways (rare in gen. sense); spec. in Chemistry, having both acidic and basic properties.