a a brill

noun

1. A(braham) A(rden),1874–1948, U.S. psychoanalyst and author, born in Austria.

noun plural brill or brills

1. a European food fish, Scophthalmus rhombus, a flatfish similar to the turbot but lacking tubercles on the body: family Bothidae

adjective

1. British slang excellent or wonderful

n.

kind of flat fish, late 15c., of unknown origin.