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单词 speculum
释义

WordReference Random House Unabridged Dictionary of American English © 2024
spec•u•lum  (spek′yə ləm),USA pronunciation n., pl. -la (-lə),USA pronunciation -lums. 
  1. Opticsa mirror or reflector, esp. one of polished metal, as on a reflecting telescope.
  2. MetallurgySee speculum metal. 
  3. Surgeryan instrument for rendering a part accessible to observation, as by enlarging an orifice.
  4. Birds[Ornith.]a lustrous or specially colored area on the wings of certain birds.
  • Latin: mirror, equivalent. to spec(ere) to look, behold + -ulum instrumental suffix; see -ule
  • 1590–1600

Collins Concise English Dictionary © HarperCollins Publishers::
speculum /ˈspɛkjʊləm/ n ( pl -la / -lə/, -lums)
  1. a mirror, esp one made of polished metal for use in a telescope, etc
  2. an instrument for dilating a bodily cavity or passage to permit examination of its interior
  3. a patch of distinctive colour on the wing of a bird, esp in certain ducks
Etymology: 16th Century: from Latin: mirror, from specere to look at
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更新时间：2025/7/23 2:14:45