dimidiation

noun

di·​mid·​i·​a·​tion

-ˌmidēˈāshən

plural -s

: a formation of marshaling by joining the dexter half of one heraldic shield with the sinister half of another divided per pale or sometimes per bend

Word History

Etymology

Late Latin dimidiation-, dimidiatio action of halving, from Latin dimidiatus + -ion-, -io -ion

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