noun The intimate pairing of homologous chromosomes during the synaptic stage of meiosis
noun ↑ "La formation des gemini hétérotypiques dans les végétaux." Grégoire, V. (1907), Cellule 24, 367-420: p371.
noun ↑ "Studies on chromosomes. VIII. Observations on the maturation‐phenomena in certain Hemiptera and other forms, with considerations on synapsis and reduction", Edmund B. Wilson, 5 October 1912, https://doi.org/10.1002/jez.1400130302