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Webster 1913 Edition

Adj.

Pertaining to, or written in, hemistichs; also, by, or according to, hemistichs;

as, a

hemistichal

division of a verse

Adj.

Pertaining to a hemistich; denoting a division of the verse.

hemistichal ‎(not comparable)

Pertaining to, or written in, hemistichs.
a hemistichal division of a verse