free variable

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. {{lb|en|programming}} A [[variable]] that is not [[bind|bound]] to a storage location.
2. {{lb|en|mathematics|logic}} A variable (occurring within some expression or [[well-formed formula]]) which is not bound by a [[quantifier]] or analogous symbol (such as a lambda abstractor, the "differential ''d''" near the end of an integral or differential form, or a summation symbol).

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.