S: (n) superfecundation (fertilization of two or more ova released during the same menstrual cycle by sperm from separate acts of coitus (especially by different males))
S: (n) superfetation (fertilization of a second ovum after a pregnancy has begun; results in two fetuses of different ages in the uterus at the same time) "superfetation is normal in some animal species"
W: (v) create [Related to: creation] (create by artistic means) "create a poem"; "Schoenberg created twelve-tone music"; "Picasso created Cubism"; "Auden made verses"
W: (v) create [Related to: creation] (bring into existence) "The company was created 25 years ago"; "He created a new movement in painting"