noun ·2 syllables ·Rare ·Advanced level

Definitions

Noun

1. 1
   A β-galactosidase enzyme that is involved in the hydrolysis of the disaccharide lactose into constituent galactose and glucose monomers. countable, uncountable
2. 2
   any of a group of enzymes (trade name Lactaid) that hydrolyze lactose to glucose and galactose wordnet

Synonyms

All synonyms

lactaidlactase phlorizin hydrolaselactase-phlorizin hydrolase

Etymology

From lacto- + -ase.

Related phrases

lactase persistence

Editorial Guides For "lactase"

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.