Tachyphylaxis

//ˌtækɪfɪˈlæksɪs// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A rapidly decreasing response to a drug following administration of the initial doses.

Etymology

From tachy- + phylaxis.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.