LACTASE

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 Dictionary entry overview: What does lactase mean? 

• LACTASE (noun)
  The noun LACTASE has 1 sense:

1. any of a group of enzymes (trade name Lactaid) that hydrolyze lactose to glucose and galactose

  Familiarity information: LACTASE used as a noun is very rare.

 Dictionary entry details 

• LACTASE (noun)

Sense 1

Meaning:

Any of a group of enzymes (trade name Lactaid) that hydrolyze lactose to glucose and galactose

Classified under:

Nouns denoting substances

Synonyms:

Lactaid; lactase

Hypernyms ("lactase" is a kind of...):

disaccharidase (an enzyme that catalyzes the hydrolysis of disaccharides into monosaccharides)

 Context examples 

Inability to fully digest and absorb lactose due to limited or no lactase activity in the small intestine.

(Lactose Intolerance, NCI Thesaurus)

This species is nonmotile, homofermentative, indole negative, produces vitamin K, lactase and amylase and does not ferment mannitol.

(Lactobacillus acidophilus, NCI Thesaurus)

Deficiencies of lactase, maltase or sucrase-isomaltase usually occur irreversibly and independent of one another.

(Intestinal Disaccharidase Deficiency and Disaccharide Malabsorption, NCI Thesaurus)

It prevents gas, diarrhea, and bloating caused by consumption from dairy foods in people that lack the natural lactase enzyme.

(Lactase, NCI Thesaurus)

A unit of measurement for the activity of lactase enzyme which is expressed as the amount of enzyme that hydrolyzes one microequivalent (uEq) of galactosidic linkage per one minute at a pH of 4.5 and at 37 degrees Celsius.

(Lactose Unit, NCI Thesaurus)

It is more often due to a gradual decline of lactase production in adulthood following the ingestion of fewer lactose-containing foods or secondary to an intestinal mucosal brush-border injury.

(Lactose Intolerance, NCI Thesaurus)