Home › Words › S › superimpregnationsuperimpregnationsuperimpregnation means impregnation in addition to a prior impregnation; superfetation.EtymologyFrom super- + impregnation.nounimpregnation in addition to a prior impregnation; superfetationDefinitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.superconception 81% match — superfetation vs superimpregnation →superfetation 76% match — The formation of a fetus while another fetus is already present in the uterus. vs superimpregnation →superfetate 73% match — To conceive after a prior conception, but before the birth of the offspring. vs superimpregnation →superfete 71% match — To conceive (another fetus) after a former conception. vs superimpregnation →supersemination 70% match — The sowing of seed over seed previously sown. vs superimpregnation →superseminate 66% match — To sow over something previously sown. vs superimpregnation →superintromission 63% match — Additional intromission vs superimpregnation →superfertility 63% match — The property of being superfertile. vs superimpregnation →