-ase[ās]

Type:Term

Definitions
1. A termination denoting an enzyme, suffixed to the name of the substance (substrate) on which the enzyme acts; phosphatase, lipase, proteinase. May also indicate the reaction catalyzed, decarboxylase, oxidase. Enzymes named before this naming convention was established generally have an -in ending; pepsin, ptyalin, trypsin.

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