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Étymol. et Hist. 1. 1878 cytoplasme (Lar. 19^eSuppl.); 2. 1900 cytoplasma (Nouv. Lar. ill.). Mot forgé par l'embryologiste et histologiste suisse R. A. von Kölliker [1817-1905] par substitution de l'élément préf. cyto-* au 1^erélément de protoplasme, protoplasma (cf. 1874 ds NED, s.v. cytoplasma : Barker tr. Frey's Histol. 66 : This primordial cell-substance is known at the present day by the name protoplasm. It has also received from Beale, Kölliker and Dujardin respectively the names bioplasm, cytoplasm and sarcode), v. aussi Encyclop. Brit., s.v. Kölliker.