maleic hydrazide
C2Formal, Technical, Academic
Definition
Meaning
A synthetic chemical compound used primarily as a plant growth regulator or herbicide, inhibiting cell division and shoot growth.
A specific organic compound derived from maleic anhydride and hydrazine, used in agriculture to suppress sprouting and growth in plants like potatoes and tobacco. In a broader chemical context, it refers to the molecule C₄H₄N₂O₂.
Linguistics
Semantic Notes
This is a highly specialized term. It is a compound noun, always used as a singular mass noun. The meaning is strictly denotative, with no common figurative uses.
Dialectal Variation
British vs American Usage
Differences
No significant differences in usage, spelling, or meaning. Both varieties use the same term identically in technical contexts.
Connotations
None beyond its technical denotation.
Frequency
Equally rare and specialized in both varieties, appearing only in agricultural science, horticulture, and chemistry domains.
Vocabulary
Collocations
Grammar
Valency Patterns
[Agent] applied maleic hydrazide to [Plant/Object].[Plant/Object] was treated with maleic hydrazide.The study examined the impact of maleic hydrazide on [Process].Vocabulary
Synonyms
Neutral
Weak
Vocabulary
Antonyms
Usage
Context Usage
Business
Used in the agricultural supply business when discussing crop management products.
Academic
Frequent in agricultural science, botany, and chemistry research papers and textbooks.
Everyday
Virtually never used in everyday conversation.
Technical
Core terminology in agrochemical manuals, safety data sheets, and regulatory documents.
Examples
By CEFR Level
- This word is too difficult for A2 level.
- Farmers use chemicals to control plants. One chemical is called maleic hydrazide.
Learning
Memory Aids
Mnemonic
Think of 'male' (man) + 'hydra' (many-headed monster) + '-zide' (like 'herbicide'): a chemical that 'tames' the 'hydra-like' sprouting of plants.
Conceptual Metaphor
A CHEMICAL IS A BRAKE; It applies the brakes to plant growth.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid literal translation of 'maleic' to 'мужской' (male). It's from 'maleic acid' (малеиновая кислота).
- Do not confuse 'hydrazide' (гидразид) with 'hydrazine' (гидразин) in translation, though they are chemically related.
Common Mistakes
- Mispronouncing 'maleic' as /ˈmeɪlɪk/ (like 'male') instead of /məˈliːɪk/.
- Incorrect pluralisation: 'maleic hydrazides' is rarely used as it's a mass noun.
- Misspelling as 'malic hydrazide' (confusion with malic acid).
Practice
Quiz
What is the primary use of maleic hydrazide?
FAQ
Frequently Asked Questions
It is a regulated chemical. Proper handling procedures must be followed as specified in its Safety Data Sheet (SDS). It is not for human consumption.
It is notably used on tobacco to suppress sucker growth and on potatoes to inhibit sprouting during storage.
No, it is a synthetic chemical and is not permitted for use in certified organic agricultural systems.
It is the hydrazide derivative of maleic acid, with the chemical formula C₄H₄N₂O₂.