Dosage (dōsˈā́j), n. [Cf. F. dosage. See Dose, v.]
1. (Med.) The administration of medicine in doses; specif., a scheme or system of grading doses of medicine according to age, etc.
[Webster 1913 Suppl.]
2. The process of adding some ingredient, as to wine, to give flavor, character, or strength.
[Webster 1913 Suppl.]
3. same as dose{1; as, “200 mg q.i.d.” [wns=1]
[PJC]
4. the quantity of a medicine or other substance given to an animal, expressed as a quantity per body weight; as, “use a dosage of 10 milligrams per kilogram”
[PJC]
5. the quantity of radiation given to or absorbed by an object; as, “a maximum dosage of 1 mrad per day is allowed”. [wns=1]
Syn. -- dose.
[WordNet 1.5 +PJC]