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Webster 1913 Edition

Adj.

Expressed by synecdoche; implying a synecdoche.

Isis is used for Themesis by a

synecdochical

kind of speech, or by a poetical liberty, in using one for another.

Drayton.

synecdochical ‎(comparative more synecdochical, superlative most synecdochical)

Using an inclusive term for something included, or vice versa; using something spoken of as the whole (hand for laborer) or vice-versa (the court for the judge).