micropropagation

[ mahy-kroh-prop-uh-gey-shuh n ]
/ ˌmaɪ kroʊˌprɒp əˈgeɪ ʃən /

noun

the propagation of plants from tissue cultures, often from single cells.

British Dictionary definitions for micropropagation

micropropagation
/ (ˌmaɪkrəʊˌprɒpəˈɡeɪʃən) /

noun

botany the production of a large number of individual plants from a small piece of plant tissue cultured in a nutrient medium