1. Plant hormones that promote cell elongation and growth, especially in stems and roots.
Usage: Plural of auxin; Commonly used in botany and plant biology

Examples

• Auxins are produced in the tips of plant shoots and help direct growth toward light.
• The concentration of auxins in different parts of a plant determines how it grows.
• Scientists study auxins to understand how plants respond to their environment.
• Synthetic auxins are sometimes used in agriculture to promote root development in cuttings.
• Auxins play a crucial role in phototropism, the plant's ability to bend toward light.