D defs.my
Entry 2 senses · 2 variants Webster, 1913

disputant

· dis·pu·tant · IPA /dɪˈspjuː.tənt/
01 a. Disputing; engaged in controversy.
  1. 1.
    Disputing; engaged in controversy.
02 n. One who disputes; one who argues in opposition to another; one appointed to dispute; a controvertist; a reasoner in opposition.
  1. 1.
    One who disputes; one who argues in opposition to another; one appointed to dispute; a controvertist; a reasoner in opposition.
    “A singularly eager, acute, and pertinacious disputant.” Macaulay.