v. Obs. [f. CONCENTRIC + -ATE.] = CONCENTRATE.
1641. Relat. Answ. Earl Stafford, 100. Here you … must of necessity concentricate your selfe and your best resolution.
1652. N. Culverwell, Lt. Nature, 138. Could angels and men have united and concentricated all their reason.
1787. Mirror, 143. Thou focus, wherein is concentricated every vulgar … ray.
