Meaning of speculum

spec•u•lum

Pronunciation: (spek'yu-lum), [key]
— pl. -la -lums.
  1. a mirror or reflector, esp. one of polished metal, as on a reflecting telescope.
  2. See
  3. an instrument for rendering a part accessible to observation, as by enlarging an orifice.
  4. a lustrous or specially colored area on the wings of certain birds.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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