Why was "tantrum" trending last week?


[hahy-drol-uh-sis] /haɪˈdrɒl ə sɪs/
noun, plural hydrolyses
[hahy-drol-uh-seez] /haɪˈdrɒl əˌsiz/ (Show IPA)
chemical decomposition in which a compound is split into other compounds by reacting with water.
1875-80; hydro-1 + -lysis Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the web for hydrolysis
  • Water can also be split into hydrogen using electricity, in a process known as hydrolysis.
  • The hydrolysis of cellulose is made via several enzymes named cellulases.
British Dictionary definitions for hydrolysis


a chemical reaction in which a compound reacts with water to produce other compounds
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
Cite This Source
Word Origin and History for hydrolysis

"chemical decomposition by water," 1880, formed in English from hydro- + Greek lysis "a loosening, a dissolution," from lyein "to loosen, dissolve" (see lose).

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
hydrolysis in Medicine

hydrolysis hy·drol·y·sis (hī-drŏl'ĭ-sĭs)
Decomposition of a chemical compound by reaction with water, such as the dissociation of a dissolved salt or the catalytic conversion of starch to glucose.

hy'dro·lyt'ic (-drə-lĭt'ĭk) adj.
hy'dro·lyze' (-drə-līz) v.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
hydrolysis in Science
The breaking down of a chemical compound into two or more simpler compounds by reacting with water. The proteins, fats, and complex carbohydrates in food are broken down in the body by hydrolysis that is catalyzed by enzymes in the digestive tract.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for hydrolysis

Most English speakers likely know this word

Word Value for hydrolysis

Scrabble Words With Friends

Nearby words for hydrolysis