lac·​case | \ ˈlaˌkās \
plural -s

Definition of laccase

: a blue copper-containing oxidase occurring especially in the sap of lacquer trees and having an ability to produce lacquer from the sap and induce oxidation of certain polyhydroxy phenols (as urushiol)

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

History and Etymology for laccase

International Scientific Vocabulary lacc- (probably from New Latin lacca) + -ase; originally formed in French

Keep scrolling for more

Learn More about laccase

Statistics for laccase

Cite this Entry

“Laccase.” Dictionary, Merriam-Webster, Accessed 17 Apr. 2021.

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

Comments on laccase

What made you want to look up laccase? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

The Exceptions Quiz III

  • one green toy robot amidst many red toy robots
  • Which of these words does not mean "nonsense"?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

 AlphaBear 2

Spell words. Make bears.

Love words? Need even more definitions?

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