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Definition of Signet ring
1. Noun. A ring bearing a signet.
Medical Definition of Signet ring
1. The early stage of trophozoite development of the malaria parasite in the red blood cell; the parasite cytoplasm stains blue around its circular margin, and the nucleus stains red in Romanowsky stains, while the central vacuole is clear, giving the ringlike appearance. (05 Mar 2000)
Lexicographical Neighbors of Signet Ring
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