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English definition of “supplementary”

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adjective uk   /ˌsʌp.lɪˈmen.tər.i/ us    /-t̬ɚ-/

supplementary adjective (EXTRA)

C2 ( US also supplemental) extra: a supplementary income

supplementary adjective (ANGLE)

specialized mathematics If an angle is supplementary to another angle, it forms 180° when combined with it.
Translations of “supplementary”
in Chinese (Traditional) 額外…
in Russian дополнительный…
in Turkish ek, ilâve, tamamlayıcı…
in Chinese (Simplified) 额外…
in Polish uzupełniający…
(Definition of supplementary from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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