vein

From Wiktionary

Pronunciation[change]

Noun[change]

Singular
vein

Plural
veins

  1. A vein is a tube in the body that carries blood back to the heart.
  2. A vein is a bump or line in a leaf where sap flows.
  3. A vein is a fissure, cleft, or cavity in the earth.

See also[change]