Defn: A contraction of art thou. [Obs.] Chaucer.

ARTSMAN
Arts"man, n.

Defn: A man skilled in an art or in arts. [Obs.] Bacon.

ART UNION
Art` un"ion.

Defn: An association for promoting art (esp. the arts of design), and giving encouragement to artists.

ARUM
A"rum, n. Etym: [L. arum, aros, Gr.

Defn: A genus of plants found in central Europe and about the
Mediterranean, having flowers on a spadix inclosed in a spathe. The
cuckoopint of the English is an example.
Our common arums the lords and ladies of village children. Lubbock.

Note: The American "Jack in the pulpit" is now separated from the genus Arum.

ARUNDELIAN
Ar`un*del"ian, a.

Defn: Pertaining to an Earl of Arundel; as, Arundel or Arundelian marbles, marbles from ancient Greece, bought by the Earl of Arundel in 1624.