hemi·​cel·​lu·​lose | \ ˌhe-mi-ˈsel-yə-ˌlōs How to pronounce hemicellulose (audio) , -ˌlōz \

Definition of hemicellulose

: any of various plant polysaccharides less complex than cellulose and easily hydrolyzable to monosaccharides and other products

Examples of hemicellulose in a Sentence

Recent Examples on the Web Trees have two types of cellulose, called cellulose and hemicellulose, neither of which can be broken down by the same enzyme. Chris Lee, Ars Technica, 5 Apr. 2018 Some lignin decomposes at around 900 degrees Celsius (~1,650 Fahrenheit), about 600 degrees higher than cellulose and hemicellulose; other lignin decomposes at temperatures below where cellulose comes apart. Chris Lee, Ars Technica, 5 Apr. 2018 Heat can travel up and down the fibers with ease, but can't easily cross them, particularly because of the air gaps left after all the woody filler (lignin and hemicellulose) was removed. Amina Khan, latimes.com, 10 Mar. 2018 But for this project, Hu and his colleagues removed all of the lignin and most of the hemicellulose. Amina Khan, latimes.com, 10 Mar. 2018 These two chemicals work together to partially remove lignin and hemicellulose, two polymers that make the cell walls of plants rigid. Marissa Fessenden, Smithsonian, 10 Feb. 2018 The lignin, hemicellulose, and other polymers that give the wood structure break down to produce sweet, vanilla notes. Wayne Curtis, WIRED, 30 May 2017 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hemicellulose.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of hemicellulose

1891, in the meaning defined above

History and Etymology for hemicellulose

International Scientific Vocabulary

Learn More About hemicellulose

Time Traveler for hemicellulose

Time Traveler

The first known use of hemicellulose was in 1891

See more words from the same year

Dictionary Entries Near hemicellulose




See More Nearby Entries 

Statistics for hemicellulose

Cite this Entry

“Hemicellulose.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hemicellulose. Accessed 30 Jun. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More Definitions for hemicellulose


hemi·​cel·​lu·​lose | \ ˌhem-i-ˈsel-yə-ˌlōs, -ˌlōz How to pronounce hemicellulose (audio) \

Medical Definition of hemicellulose

: any of various plant polysaccharides less complex than cellulose and easily hydrolyzable to simple sugars and other products

Other Words from hemicellulose

hemicellulosic \ -​ik How to pronounce hemicellulose (audio) \ adjective

More from Merriam-Webster on hemicellulose

Britannica.com: Encyclopedia article about hemicellulose


Test Your Vocabulary

Which Word Does Not Belong?

  • one green toy robot amidst many red toy robots
  • Which of these words does not mean "nonsense"?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!