SYN: monovalent (1).
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uni·va·lent .yü-ni-'vā-lənt n a chromosome that lacks a synaptic mate
univalent adj
1) MONOVALENT (1)
2) being a chromosomal univalent
3) of an antibody capable of agglutinating or precipitating but not both: having only one combining group
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uni·va·lent (u″nĭ-vaґlənt) monovalent.Medical dictionary. 2011.