Speculum definition

spĕkyə-ləm
An instrument for dilating the opening of a body cavity for medical examination.
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A mirror or polished metal plate used as a reflector in optical instruments.
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A bright, often iridescent patch of color on the wings of certain birds, especially ducks.
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A transparent spot in the wings of some butterflies or moths.
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(med.) An instrument for dilating a passage or cavity to facilitate its examination.
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(ornithology) A distinctive patch of color on the wings of certain birds, esp. ducks.
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A mirror, esp. one of polished metal.
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(historical) Such a mirror in a reflecting telescope.
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A mirror or polished metal plate used as a reflector in optical instruments.
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An instrument for dilating the opening of a body cavity for medical examination.
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(medicine) A medical instrument used during an examination to dilate an orifice.
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Other Word Forms

Noun

Singular:
speculum
Plural:
specula, speculums

Origin of speculum

  • Middle English surgical speculum from Latin mirror from specere to look at spek- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Latin speculum (“mirror"), diminutive form from root spec-, to look at + diminutive suffix -ulum.

    From Wiktionary