(surgery) An artificial opening of the intestine (usually a colostomy; sometimes an ileostomy).

(pathology) A chronic and progressive disease in which the immune system attacks the joints. It is characterised by pain, inflammation and swelling of the joints, stiffness, weakness, loss of mobility and deformity. Tissues throughout the body can be affected, including the skin, blood vessels, heart, lungs, and muscles.

A public performer, especially of song or dance. / Any person with artistic skill, such as a hairdresser or a cook.

Inclined towards the arts. / (sometimes derogatory) Pretending to artistic worth; high-flown.

(military, slang) Artillery. / (military, slang) An artillery crew member.

Alternative form of MacArthur

Having or displaying no guile, cunning, or deceit. / Free of artificiality; natural. / Lacking art, knowledge, or skill; uncultured and ignorant. / Poorly made or done; crude.

The edible fleshy receptacle at the bottom of an artichoke flower.

(chiefly Britain) a drunkard / (chiefly Britain) someone who pretends to be knowledgeable on some subject

(medicine) The manual or mechanical forcing of air into the lungs of a person who is not breathing in order to maintain life.