dosage

noun

dos·​age ˈdō-sij 

1

a

: the addition of an ingredient or the application of an agent in a measured dose

b

: the presence and relative representation or strength of a factor or agent

2

a

: dose sense 2

b(1)

: the giving of a dose

(2)

: regulation or determination of doses

3

: an exposure to some experience in or as if in measured portions

Examples of dosage in a Sentence

Recent Examples on the Web

Zombifying otherwise becomes a side effect of a high dosage. —Anna Peele, Vanity Fair, 27 Jan. 2026

But Juurlink found a case report from 1990 that documented a breast-feeding mother producing a milk sample whose concentration was fifteen per cent higher than Rani’s—and that was after the woman’s morphine dosage had been tapered by ninety per cent. —Ben Taub, New Yorker, 26 Jan. 2026

With microdosing, patients begin at the lowest effective amount of the medication and increase the dosage more slowly. —Zoe Weiner, Flow Space, 23 Jan. 2026

But, over the last decade, newer versions of proton machines have advanced to more effectively shape dosages. —Jillian Taylor, StateImpact, 20 Jan. 2026

Word History

First Known Use

1849, in the meaning defined at sense 1a

Rhymes for dosage

• overdosage

Kids Definition

dosage

noun

dos·​age ˈdō-sij 

1

a

: the giving of medicine in doses

b

: the amount of a single dose

2

: the addition or application of a substance in a measured dose

Medical Definition

dosage

noun

dos·​age ˈdō-sij 

1

a

: the addition of an ingredient or the application of an agent in a measured dose

b

: the presence and relative representation or strength of a factor or agent (as a gene)

2

a

: dose sense 1

b(1)

: the giving of a dose

(2)

: regulation or determination of doses