plant hormone
1
3.8
- noun
- /plænt ˈhɔːrmoʊn/
- Specialized
:
hormona vegetal
- However, there is a known and well-documented plant hormone analog effect of CO2 as levels rise toward 1400 ppmv in otherwise optimal conditions (Liebig's law of the minimum).
- plant hormone called abscisic acid
Examples
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The toxic chemicals entering the water supply include large amounts of fertilizers, plant hormones, spilled diesel fuel from generators and water pumps, and even rat poisons.
Blog text (2) -
Researchers isolated a plant hormone that significantly boosts leaf growth in stressed plants.
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Levels of that plant hormone, which stimulates the natural separation of leaves and flowers from parent plants, increase when plants are subjected to environmental stress.
Academic text (1998) -
It means that if you're taking vitamins that are really extracts of plant hormones, then why not eat the plant?
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A plant hormone, auxin, is responsible for causing the cells on the shaded side of the stem to elongate, causing the bend.
Blog text (34) -
The plant hormone ethylene promotes the ripening of fruits like bananas and tomatoes.
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To enhance crop yields, farmers apply a plant hormone that accelerates flowering in various species.
Synonyms
A chemical plants make that controls their growth and development
A natural or man-made substance in plants that controls how they grow and develop
Antonyms
- Specialized
46
6.0
A substance that slows down and can stop chemical reactions in the body or in a lab
Surface Forms
Morphology
The meaning 'a natural substance produced by plants that regulates growth...' is directly and transparently derived from combining 'plant' (a photosynthetic organism) with 'hormone' (a chemical regulator). This noun‑noun compositional pattern is regular in English and has clear parallels in other languages, so a B1 learner who knows both constituents will readily infer the MWE meaning.
Etymology
The phrase plant hormone paints a picture of tiny messengers called hormones moving through a plant to tell parts when to 'grow', 'flower', or 'heal', so it means a natural substance that controls a plant's growth and responses.