1. phlebotonic - Noun
2. phlebotonic - Adjective
phlebotonic (comparative more phlebotonic, superlative most phlebotonic)
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.
phlebotonic (plural phlebotonics)
A substance (especially a drug) that is phlebotonic; a drug that modifies the tone of vein walls to treat venous insufficiency causing venous ulcers, hemorrhoids, or varicose veins.