【机】 optimeter
optics
【化】 optics
【医】 optics; photology
compare; compete; ratio; than
【医】 proportion; ratio
【经】 Benelux; benelux customs union; benelux economic union
infer; measure; survey
implement; organ; utensil; ware
【医】 apparatus; appliance; crgan; device; organa; organon; organum; vessel