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1. One of three children delivered at the same birth. Synonym(s): tridymus
2. A set of three similar objects, as a compound lens in a microscope, formed of three planoconvex lenses.
3. Synonym(s): codon
Farlex Partner Medical Dictionary © Farlex 2012
tridymusAn obsolete term for one of triple gestation—i.e., a triplet.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.