What is "euplastic"

Euplastic \Eu*plas"tic\, n. (Med.) Organizable substance by which the tissues of an animal body are renewed. [1913 Webster] ||

Euplastic \Eu*plas"tic\, a. [Pref. eu- + -plastic.] (Med.) Having the capacity of becoming organizable in a high degree, as the matter forming the false membranes which sometimes result from acute inflammation in a healthy person.
--Dunglison.

a. (context archaic English) (non-gloss definition: Describing an organizable substance by which the tissues of an animal body are renewed.)