an instrument for determining the presence and severity of .

astigmatoscope as·tig·mat·o·scope (ās’tĭg-māt’ə-skōp’) or a·stig·mo·scope (ə-stĭg’mə-skōp’)
An instrument for detecting and measuring the degree of astigmatism.
a·stig’ma·tos’co·py (-tŏs’kə-pē) or as’tig·mos’co·py (-mŏs’kə-pē) n.

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    moving or , especially with much activity or excitement: The field was astir with small animals, birds, and insects. up and about; out of bed. Historical Examples But, then, it was so early that not many even of the early-rising farmers were astir. Ruth Fielding In the Red Cross Alice B. Emerson The child was […]

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