by definition

phrase

: because of what something or someone is : according to the definition of a word that is being used to describe someone or something
A volunteer by definition is not paid.
A glider is by definition an aircraft with no engine.

Examples of by definition in a Sentence

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But by definition, a nightgown is only meant for sleep and loungewear. — Brandee Gruener, Southern Living, 18 Sep. 2026 But that miscalculation was, itself, premised on the unexamined assumption that a K-12 public education should be essentially vocational and therefore—almost by definition—aligned with corporate interests. — Jessica Winter, New Yorker, 17 Sep. 2026 Diagnostic Features Define Tardive Dyskinesia Tardive dyskinesia, by definition, is a side effect of certain medications categorized as neuroleptics, which are usually used for treatment of schizophrenia. — Heidi Moawad, Verywell Health, 16 Sep. 2026 For one thing, archetypes are by definition reductive, and there are plenty of people around here who are older, or parents, or retired, or indifferent to the bar scene, or all of the above. — Christopher Bonanos, Curbed, 2 Sep. 2026 See All Example Sentences for by definition

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“By definition.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/by%20definition. Accessed 29 Sep. 2026.

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