karyogamy

noun 0.694

autogamy

noun 0.627

sexual union

noun 0.604

geitonogamy

noun 0.603

zygote

noun 0.598

synapsis

noun 0.586

symbiogenesis

noun 0.578

synizesis

noun 0.561

symbiosis

noun 0.556

polyspermy

noun 0.550

zygospore

noun 0.544

symbiosome

noun 0.542

gamete

noun 0.541

symphysis

noun 0.538

synechia

noun 0.534

zygotene

noun 0.533

homogamy

noun 0.532

fecundation

noun 0.530

symbiotic

noun 0.526

coition

noun 0.524

syzygy

noun 0.523

symphonia

noun 0.520

synthesis

noun 0.519

synteny

noun 0.517

gynogenesis

noun 0.514

hybridization

noun 0.513

gemination

noun 0.509

symbiote

noun 0.506

hybridism

noun 0.506

syngas

noun 0.505

sync

noun 0.505

syconium

noun 0.504

gynostemium

noun 0.503

endogamy

noun 0.502

symbiont

noun 0.502

synergy

noun 0.500

synchrony

noun 0.500