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English

auxins

|aux-ins|

C2

/ˈɔːksɪn/

(auxin)

promote growth

Base FormPluralAdjectiveAdverb
auxinauxinsauxinicauxinically
Etymology
Etymology Information

'auxin' originates from New Latin, specifically the word 'auxinus', where the element 'aux-' came from Greek 'auxein' meaning 'to increase, to grow'.

Historical Evolution

'auxin' changed from New Latin 'auxinus', which in turn derives from Greek 'auxein' (to grow), and was coined in the early 20th century in English to name growth-promoting substances in plants.

Meaning Changes

Initially, it referred broadly to substances that promoted growth; over time it became the technical term for specific plant growth hormones (notably IAA and related compounds).

Meanings by Part of Speech

Noun 1

any of a class of plant hormones that regulate growth and various developmental processes; especially compounds like indole-3-acetic acid (IAA) that promote cell elongation and apical dominance.

Auxins regulate cell elongation, phototropism, and apical dominance in plants.

Synonyms

plant hormoneIAAindole-3-acetic acid

Antonyms

cytokinins

Last updated: 2025/11/30 04:12