monomial

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. Mathematics An algebraic expression consisting of only one term.
2. n. Biology A taxonomic name consisting of a single word.

Century Dictionary and Cyclopedia

1. In algebra, consisting of only one term, and not of several added together.
2. In zoology and botany, same as mononomial.
3. n. In algebra, an expression or quantity consisting of a single term. See binomial. Also monome.

Wiktionary

1. adj. Relative to an algebraic expression consisting of one term.
2. n. mathematics A single term consisting of a product of variables with positive integer exponents.
3. n. mathematics A single term consisting of a product of numbers and variables with positive integer exponents.

GNU Webster's 1913

1. n. (Alg.) A single algebraic expression; that is, an expression unconnected with any other by the sign of addition, substraction, equality, or inequality.
2. adj. (Alg.) Consisting of but a single term or expression.