A termite.

(mathematics) [of one variable or unit of measurement x which has a known relationship to another y] Using equivalent expressions in y in place of expressions in x; mapping x to y.

(archaic) In friendly relations with.

A word that has a specific meaning within a specific field of expertise.

A word or phrase whose use or meaning is specific to a particular field of endeavor.

(computing) The word or phrase that a user searches for, e.g. in a search engine.

The cosmological constant.

A word, phrase, or nickname used as a term of address expressing affection.

(idiomatic) A word or phrase that is used to describe multiple groups of related things. The degree of relation may vary. Blanket terms often trade specificity for ease-of-use; in other words, a blanket term by itself gives little detail about the things that it describes or the relationships between them, but is easy to say and remember. Blanket terms often originate as slang, and eventually become integrated into the general vocabulary.

A word or phrase used to address or refer to someone or something without using his, her, or its name.