Function: noun
Date: 1936
: any of various synthetic or naturally occurring plant substances (as an auxin or gibberellin) that regulate growth
Function: noun
Date: 1936
: any of various synthetic or naturally occurring plant substances (as an auxin or gibberellin) that regulate growth
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012