Definition of cellulase in English:



  • [mass noun] An enzyme that converts cellulose into glucose or a disaccharide.

    • ‘They did not yield isoprimeverose; additionally, charophyte material was not digestible with xyloglucan-specific endoglucanase or cellulase to give xyloglucan-derived oligosaccharides.’
    • ‘In the discussion, Kimball Atwood proposed that it might be possible to put the enzyme cellulase into humans, so that people could consume paper.’
    • ‘A good digestive enzyme should include lipase to digests fats, amylase for carbohydrates, protease for proteins, cellulase for cellulose and fiber, and lactase for dairy.’
    • ‘As such, it's an abundant source of energy, but most animals lack the enzyme cellulase, which breaks the bonds that lock the individual sugar molecules together.’
    • ‘As is erodes, it releases the digestive enzymes, amylase, lipase, and cellulase.’


Early 20th century: from cellulose + -ase.