[ mawl-teys, -teyz ]
/ ˈmɔl teɪs, -teɪz /

noun Biochemistry.

an enzyme that converts maltose into glucose and causes similar cleavage of many other glucosides.


Discover The Influence Of Portuguese On English Via This Quiz!
We’ve gathered some interesting words donated to English from Portuguese … as well as some that just don’t translate at all. Do you know what they mean?
Question 1 of 11
Which of the following animal names traces its immediate origin to Portuguese?

Origin of maltase

First recorded in 1885–90; malt + -ase Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for maltase

  • When hydrolyzed, either by dilute acids or by maltase, one molecule of maltose yields two molecules of glucose.

    The Chemistry of Plant Life|Roscoe Wilfred Thatcher

British Dictionary definitions for maltase

/ (ˈmɔːlteɪz) /


an enzyme that hydrolyses maltose and similar glucosides (α-glucosides) to glucoseAlso: α-glucosidase

Word Origin for maltase

C19: from malt + -ase
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for maltase

[ môltās′, -tāz′ ]


An enzyme that catalyzes the hydrolysis of maltose to glucose.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.