capillary (noun) vein: blood vessel
Detalii: arteries carry clean oxygenated blood from the heart, veins return impure blood back to the heart, and capillaries connect the ends of arteries to the beginnings of veins
Sinonime: bear*, bellyacher, bug*, complainer, crab, crank, crosspatch, curmudgeon, faultfinder, griper, grouser, growler, grump, kicker, malcontent, moaner, murmurer, mutterer, sorehead, sourpuss, whiner