adj.
1.serving as an essential component
2.being or denoting a numerical quantity but not order cardinal n.
1.(Roman Catholic Church) one of a group of more than 100 prominent bishops in the Sacred College who advise the Pope and elect new Popes
2.the number of elements in a mathematical set
3.a variable color averaging a vivid red
4.crested thick-billed North American finch having bright red plumage in the male
Idiom of the Day
have been had
to have been cheated or dealt with badly
I felt that I had been had when the salesman sold me the bad product.