Definition of callose in English:

callose

noun

Biochemistry
  • A polysaccharide found in higher plants as a constituent of certain types of cell wall, and deposited on parts of the plasma membrane in response to wounding or physiological stress.

adjective

  • Originally: (of animal tissue or skin) hardened, thickened; = "callous". In later use also Botany: bearing one or more callosities.

Origin

Late 19th century. From French callose from classical Latin callus + French -ose<br>late Middle English; earliest use found in Lanfranc's Science of Cirurgie. From classical Latin callōsus callous.

Pronunciation

callose

/ˈkaləʊs//ˈkaləʊz/