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Webster 1913 Edition

Adj.

Of or pertaining to a metropolis; being a metropolis; metropolitan;

as, the

metropolitical

chair

Bp. Hall.

metropolitical ‎(comparative more metropolitical, superlative most metropolitical)

(archaic) metropolitan; pertaining to a metropolis
- Bishop Joseph Hall
  […] a lawful Archbishop of their own religion, legally established in the Metropolitical Chair by an acknowledged authority […]