Answer: octuplet

AnswerCrossword Clue
OCTUPLETSurprise birth
OCTUPLETExceedingly rare infant
OCTUPLETRare birth occurrence
OCTUPLETAny of Apu's children, on "The Simpsons"
OCTUPLETOne with the same birthday as seven siblings
OCTUPLETOne of eight
OCTUPLETExtra-special delivery?
octupleta group of eight related items
octupletgroup, series, or combination of eight related items
octupletgroup of eight notes that are to be played or sung in the same time as six notes of equal value