neurotransmitter
C1/C2Technical/scientific, academic
Definition
Meaning
A chemical substance that transmits nerve impulses across a synapse from one neuron to another.
Any endogenous chemical messenger that facilitates neuronal communication; sometimes extended metaphorically to describe any substance or factor that transmits signals or influences between entities.
Linguistics
Semantic Notes
The term is almost exclusively used in biological, medical, and psychological contexts. It implies both the chemical nature of the substance and its specific functional role in neural signalling. Not typically used for electrical signalling.
Dialectal Variation
British vs American Usage
Differences
No significant spelling or meaning differences. Both varieties use the term identically in technical contexts.
Connotations
Identical scientific/medical connotations in both varieties.
Frequency
Equally frequent in scientific/academic registers in both UK and US English.
Vocabulary
Collocations
Grammar
Valency Patterns
Noun + verb (e.g., Neurotransmitters transmit signals.)Adjective + neurotransmitter (e.g., inhibitory neurotransmitter)Verb + neurotransmitter (e.g., to release a neurotransmitter)Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “[No common idioms exist for this technical term]”
Usage
Context Usage
Business
Virtually never used, except in biotech/pharma company reports.
Academic
Extremely common in neuroscience, psychology, biology, and medicine papers and textbooks.
Everyday
Rare; may appear in popular science articles or health discussions about mental well-being.
Technical
The primary context of use; precise and frequent in research, clinical neurology, and pharmacology.
Examples
By Part of Speech
verb
British English
- [No standard verb form exists]
American English
- [No standard verb form exists]
adverb
British English
- [No standard adverb form exists]
American English
- [No standard adverb form exists]
adjective
British English
- neurotransmitter release
- neurotransmitter activity
American English
- neurotransmitter function
- neurotransmitter imbalance
Examples
By CEFR Level
- [Too technical for A2; no natural examples.]
- Serotonin is a well-known neurotransmitter.
- The brain uses many different neurotransmitters.
- Dopamine is a neurotransmitter associated with pleasure and reward.
- Some drugs work by blocking the reuptake of specific neurotransmitters.
- The precise mechanism involves the vesicular release of the neurotransmitter glutamate into the synaptic cleft.
- Pharmacological interventions often aim to modulate dysfunctional neurotransmitter systems implicated in mood disorders.
Learning
Memory Aids
Mnemonic
Think: NEURON + TRANSMITTER = a chemical that transmits messages between neurons.
Conceptual Metaphor
Chemical messengers / Postal service of the brain (carrying letters/messages from one neuron to the next).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid confusing with 'медиатор' (which can be a broader mediator). The direct and correct equivalent is 'нейромедиатор'.
- Do not translate as 'нейропередатчик' – this is a calque and not standard.
Common Mistakes
- Using it as a verb (e.g., 'It neurotransmitters the signal.' – incorrect).
- Confusing it with a hormone (hormones travel via bloodstream; neurotransmitters act locally across synapses).
- Misspelling as 'neuro-transmitter' (hyphenated form is archaic).
Practice
Quiz
Which of the following best describes the primary function of a neurotransmitter?
FAQ
Frequently Asked Questions
Dopamine acts primarily as a neurotransmitter within the brain. However, in other parts of the body, it can also function as a neurohormone released by the hypothalamus.
Neurotransmitters are released at synapses and act locally on adjacent neurons. Hormones are secreted into the bloodstream by glands and can have effects on distant target cells throughout the body.
Yes, key examples include acetylcholine, dopamine, serotonin, gamma-aminobutyric acid (GABA), glutamate, and norepinephrine (noradrenaline).
Many antidepressants, like SSRIs (Selective Serotonin Reuptake Inhibitors), work by increasing the availability of specific neurotransmitters (e.g., serotonin) in the synaptic cleft, which can help regulate mood.