# phlebotonic

> English word · Adjective

## Definitions
1. Affecting the tone of veins; that is, affecting the muscle tone of the smooth muscle in the walls of veins, thus influencing blood flow within the lumen.

## Etymology
From phlebo- + tonic.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/phlebotonic