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Webster 1913 Edition

(lē̍-prŏs′ĭ-ty̆)

Noun.

The state or quality of being leprous or scaly; also, a scale.

Bacon.

Noun.

Squamousness. [Little used.]

leprosity ‎(countable and uncountable, plural leprosities)

The state or quality of being leprous or scaly.
(Can we find and add a quotation of Francis Bacon to this entry?)