n. [ Gr. &unr_;. ] Education late in life. [ R. ] Hales. [ 1913 Webster ]
n. [ Gr. &unr_; sight + -meter: cf. F. opsiomètre. ] An instrument for measuring the limits of distinct vision in different individuals, and thus determiming the proper focal length of a lens for correcting imperfect sight. Brande & C. [ 1913 Webster ]
n. [ L. opsonatio. ] A catering; a buying of provisions. [ Obs. ] Bailey. [ 1913 Webster ]