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Synonyms

biologic

American  
[bahy-uh-loj-ik] / ˌbaɪ əˈlɒdʒ ɪk /

noun

  1. Pharmacology. Usually biologics. Also biological any diagnostic, preventive, or therapeutic preparation, as a serum or vaccine, derived from animal products or other biological sources.

    Most of our biologics are isolated from human tissue.

adjective

  1. Biology. biological.

Etymology

Origin of biologic

First recorded in 1850–55; biolog(y) ( def. ) + -ic ( def. )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

I tried two different biologic drugs, shots that required me to see an allergist every few weeks.

From The Wall Street Journal • Feb. 13, 2026

Demand for biologic medicines has grown by double digits annually for more than a decade and should continue apace.

From Barron's • Jan. 8, 2026

In rheumatoid arthritis, where the immune system attacks joint linings, biologic drugs can control inflammation and prevent damage—though they may also raise infection risk or cause fatigue and nausea.

From The Wall Street Journal • Nov. 23, 2025

"Targeted anti-inflammatory treatments, such as repurposing asthma biologic medication, could be a new therapeutic approach to treat both diseases."

From Science Daily • Apr. 4, 2024

So, the highest of all our complex technologies in the hardest of our sciences will soon be engaged, full scale, in what is essentially biologic research—and with some aspects of social science, at that.

From "The Lives of a Cell" by Lewis Thomas

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.