heptuplet means one of a group of seven, particularly one of seven babies born at the same birth. Lexicurio rates it Sui generis — a strength score of 100 out of 100.
Etymology
From heptuple + -et.
noun
- One of a group of seven, particularly one of seven babies born at the same birth.“El Paso Herald: A Hawaiian woman is accredited with heptuplets, three and a half pair of twins, all at once. And Honolulu is waiting to see what Roosevelt purposes to do about it.”