SEMILUNAR VALVE

Pronunciation (US):

(GB):

 Dictionary entry overview: What does semilunar valve mean? 

• SEMILUNAR VALVE (noun)
  The noun SEMILUNAR VALVE has 1 sense:

1. a heart valve with cusps shaped like half-moons; prevents blood from flowing back into the heart

  Familiarity information: SEMILUNAR VALVE used as a noun is very rare.

 Dictionary entry details 

• SEMILUNAR VALVE (noun)

Sense 1

Meaning:

A heart valve with cusps shaped like half-moons; prevents blood from flowing back into the heart

Classified under:

Nouns denoting body parts

Hypernyms ("semilunar valve" is a kind of...):

cardiac valve; heart valve (a valve to control one-way flow of blood)

Hyponyms (each of the following is a kind of "semilunar valve"):

aortic valve (a semilunar valve between the left ventricle and the aorta; prevents blood from flowing from the aorta back into the heart)

pulmonary valve (a semilunar valve between the right ventricle and the pulmonary artery; prevents blood from flowing from the artery back into the heart)

 Context examples 

Any of the four heart valves, including the two atrioventricular valves and the two semilunar valves, that regulate the flow of blood through the chambers of the heart.

(Cardiac Valve, NCI Thesaurus)

The backward flow of blood from the aorta into the left ventricle, owing to insufficiency of the aortic semilunar valve; it may be chronic or acute.

(Aortic Valve Regurgitation, NCI Thesaurus)