Definitions

1. noun

A plant hormone that promotes cell elongation and cell division, playing a key role in plant growth and development.

“Auxin is essential for the proper growth of seedlings and the straightening of stems.”

2. chemistry

A class of plant growth regulators, commonly referred to as indole-3-acetic acid, which have a similar chemical structure to the naturally occurring plant hormone auxin.

“The chemical auxin is widely used in plant biology research and agriculture.”