Røonne

Henning K.T., Danish ophthalmologist, 1878–1947. See R. nasal step.

Medical dictionary. 2011.

Look at other dictionaries:

  • scotoma — 1. An isolated area of varying size and shape, within the visual field, in which vision is absent or depressed. 2. A blind spot in psychological awareness. [G. skotoma, vertigo, fr. skotos, darkness] absolute s. a s. in which there is no… …   Medical dictionary

  • step — 1. In dentistry, a dove tailed or similarly shaped projection of a cavity prepared in a tooth into a surface perpendicular to the main part of the cavity for the purpose of preventing displacement of the restoration (filling) by the …   Medical dictionary

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