Speculum(redirected from bivalve speculum)
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A tubular instrument for inserting into a passage or cavity of the body to facilitate visual inspection or medication.
An optical instrument reflector of polished metal or of glass with a film of metal.
Speculum(religion, spiritualism, and occult)
A speculum is a table constructed in tandem with an astrological chart that records such information as the planets’ declination, right ascension, latitude, etc.