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

One essential book that most physicians carried around was Pharmacopeia, a pocket-sized manual that listed all of the available drugs, along with their interactions, formulations and dosages. —Alexis Kayser, MSNBC Newsweek, 23 Sep. 2025

This practice – called evergreening – may cover new dosages, delivery methods, drug combinations and conditions. —Lucy Xiaolu Wang, The Conversation, 23 Sep. 2025

Before taking a supplement, talk with a doctor about dosages, forms, duration, and safety. —Merve Ceylan, Health, 23 Sep. 2025

Some factors that can affect this decision may include side effects, dosage, and your lifestyle. —Megan Nunn, Verywell Health, 22 Sep. 2025

Word History

First Known Use

circa 1867, 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