vasodilator

noun

va·​so·​di·​la·​tor ˌvā-zō-dī-ˈlā-tər  -ˈdī-ˌlā- 

: an agent (such as a parasympathetic nerve fiber or a drug) that induces or initiates vasodilation

Examples of vasodilator in a Sentence

Recent Examples on the Web

Some, such as vasodilators, relax and widen arteries and veins to allow blood to get through easier and increase flow. —Jen Christensen, CNN Money, 30 Aug. 2025

Nitric oxide, in turn, is a vasodilator that causes blood vessels to widen (dilate). —Angela Ryan Lee, Verywell Health, 21 May 2025

As a vasodilator, marijuana increases blood flow, heightening sensitivity in erogenous zones. —Tribune Content Agency, The Mercury News, 19 Mar. 2025

Rosemary is a vasodilator, according to VeryWell Health, which can improve blood flow — this has led researchers to believe the ingredient stimulates hair follicles and improves scalp health. —Rachel Raposas, People.com, 12 Dec. 2024

Alcohol is a vasodilator, which causes blood vessels to expand and can lead to a temporary flushing of the skin (especially on your face). —Sanjana Ray, Glamour, 12 Dec. 2024

Word History

Etymology

vaso- + dilator, after French vaso-dilateur

First Known Use

1881, in the meaning defined above

Rhymes for vasodilator

• militar

Medical Definition

vasodilator

1 of 2 noun

va·​so·​di·​la·​tor ˌvā-zō-ˈdī-ˌlāt-ər 

: an agent (as a parasympathetic nerve fiber or a drug) that induces or initiates vasodilation

vasodilator

2 of 2 adjective

variants also vasodilatory

-ˈdil-ə-ˌtōr-ē, -ˈdī-lə-, -ˌtȯr- 

: relating to, inducing, or initiating vasodilation

a drug with a vasodilator effect