Definition:Heptomino

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Definition

A heptomino is a $7$-omino:

Heptominoes.png

That is, it is a polyomino consisting of exactly $7$ unit squares.


Linguistic Note

The word heptomino is a back-formation from the word domino.

The prefix hept- comes from ancient Greek meaning $7$, while -omino suffix derives from the term polyomino, which is derived in turn from domino.


Sources