opsiometer

[Gr. ops is =sight, and metron =a measure.] Optics: An instrument for measuring the limits of distinct vision in different individuals, for determining the focal length of lenses suited for remedying imperfect vision. *õp-sō-mā-ni-a, s. [Gr. ops on =food, dainties, and mania =madne .] A morbid love or fancy for some particular food or dish. *op-sō-mā-ni-ac, 8. [OPSOMANIA.] One who is affected with opsomania. *op-sō-nā-tion, s. [Lat. opsonatio , from opsona tus , pa. par. of opsono , obsono , obsonor to buy provisions, from Gr. opsōnion =provisions.] A buying of provisions; catering.