hemicellulose

noun

1. any of a group of gummy polysaccharides, intermediate in complexity between sugar and cellulose, that hydrolyze to monosaccharides more readily than cellulose.

noun

1. any of a group of plant polysaccharides that occur chiefly in the cell wall

n.

1. Any of several polysaccharides that are more complex than a sugar and less complex than cellulose and found in plant cell walls.