in vivo

adverb or adjective

in vi·​vo in-ˈvē-(ˌ)vō 

-ˈwē-(ˌ)wō

: in the living body of a plant or animal

Examples of in vivo in a Sentence

Recent Examples on the Web

Sana continues to focus on developing its ex vivo and in vivo cell engineering platforms and advancing its pipeline of product candidates. —Quartz Bot, Quartz, 8 Nov. 2024

Geranium Oil Research shows that geranium oil demonstrated hair growth in in vitro (performed in a lab dish or test tube) and in vivo (performed on living organisms) studies. —Kathi Valeii, Verywell Health, 24 Oct. 2024

The researchers took living, or in vivo, human beta cells and transplanted them into the kidneys of diabetic and nondiabetic mice. —Lauren J. Young, Scientific American, 29 July 2024

Types and Benefits Geranium Oil Research shows that geranium oil demonstrated hair growth in in vitro (performed in a lab dish or test tube) and in vivo (performed on living organisms) studies. —Kathi Valeii Published, Verywell Health, 2 July 2024

Word History

Etymology

New Latin, literally, in the living

First Known Use

1901, in the meaning defined above

Kids Definition

in vivo

adverb or adjective

in vi·​vo in-ˈvē-(ˌ)vō 

-ˈwē-(ˌ)wō

: inside the living body of a plant or animal

in vivo activity

Etymology

Latin, literally, "in the living"

Medical Definition

in vivo

adverb or adjective

in vi·​vo in-ˈvē-(ˌ)vō 

1

: in the living body of a plant or animal

in vivo synthesis of DNA

microorganisms are not ordinarily destroyed in vivo{/qi} by bacteriostatic drugs

—The Journal of the American Medical Association

2

: in a real-life situation

observing a patient's behavior in vivo