Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun speculum

2 senses of speculum

Sense 1
speculum -- (a mirror (especially one made of polished metal) for use in an optical instrument)
       => mirror -- (polished surface that forms images by reflecting light)

Sense 2
speculum -- (a medical instrument for dilating a bodily passage or cavity in order to examine the interior)
       => medical instrument -- (instrument used in the practice of medicine)