borrowed from German polydispers, from poly- poly- + dispers "dispersed," borrowed from Latin dispersus, past participle of dispergere "to spread about, scatter, disperse" — more at disperse
The term was introduced by the German chemist Wolfgang Ostwald (1883-1943) in Grundriss der Kolloidchemie, 2. Auflage, 1. Hälfte (Dresden, 1911), p. 39.
1915, in the meaning defined above
“Polydisperse.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/polydisperse. Accessed 3 Dec. 2023.
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