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

The Food and Drug Administration on July 24 approved the non-prescription combination dosage of 650 mg of Tylenol (acetaminophen) and 220 mg of naproxen sodium. — Ken Alltucker, USA Today, 24 July 2026

According to her research, which is based on claims for 1 million Medicare patients from 2005 to 2019, the average, dosage-unit cost of a generic drug is $4, compared to $157 for brand-name drugs after accounting for rebates. — Chantelle Lee, Time, 23 July 2026

In any case, there are no standard dosage recommendations for lemon balm. — Wendy Wisner, Health, 23 July 2026

Drinks below five milligrams were the fastest-growing dosage tier, rising 211%. — Noel Burgess, Forbes.com, 20 July 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