exocytose
Very LowTechnical/Scientific
Definition
Meaning
The process by which a cell secretes substances (such as hormones or neurotransmitters) by discharging them from vesicles through fusion with the plasma membrane.
In a broader scientific context, it can refer to any cellular export mechanism involving vesicle-membrane fusion.
Linguistics
Semantic Notes
Primarily used as a verb ('to exocytose') in cell biology. The related noun is 'exocytosis'. It is an intransitive verb describing the action of the cell or vesicle.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or spelling. Usage is identical in both scientific communities.
Connotations
Purely technical, with no cultural connotations.
Frequency
Extremely rare outside molecular/cellular biology textbooks and research papers.
Vocabulary
Collocations
Grammar
Valency Patterns
The cell [Subject] exocytosed.The vesicle [Subject] exocytosed.Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “None”
Usage
Context Usage
Business
Not used.
Academic
Used exclusively in advanced biology, physiology, and medical research contexts.
Everyday
Virtually never used.
Technical
Core term in cell biology and neurobiology describing a fundamental cellular process.
Examples
By Part of Speech
verb
British English
- The synaptic vesicles exocytose upon calcium influx.
- The research aimed to determine what triggers the cell to exocytose.
American English
- The secretory cells exocytosed their contents within milliseconds.
- They observed the beta cells exocytosing insulin granules.
adverb
British English
- Not used adverbially.
American English
- Not used adverbially.
adjective
British English
- The exocytotic pathway was blocked.
- They studied the exocytose mechanism.
American English
- They measured the exocytotic release rate.
- The exocytose process is calcium-dependent.
Examples
By CEFR Level
- Not applicable for this level.
- Not applicable for this level.
- Scientists can watch a cell exocytose under a special microscope.
- The drug prevented the vesicles from exocytosing.
- Upon stimulation, the chromaffin cells exocytosed catecholamines into the bloodstream.
- The study characterised the proteins that dock the vesicle before it exocytoses.
Learning
Memory Aids
Mnemonic
Think 'EXIT' + 'CELL' + 'OSE' (like a process). The cell makes substances EXIT via the Cytosis process.
Conceptual Metaphor
A post office van (vesicle) fusing with the wall of the post office (cell membrane) to deliver packages (substances) outside.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'экзоцитоз' (noun) when using the verb form. The English verb is 'exocytose', not 'exocytosis' as an action verb.
- Avoid literal translation into general Russian verbs like 'выделять' without specifying the cellular mechanism.
Common Mistakes
- Using it as a transitive verb (e.g., 'The cell exocytosed neurotransmitters' is acceptable, but 'exocytosed' is often used intransitively).
- Confusing the verb 'exocytose' with the more common noun 'exocytosis'.
- Misspelling as 'exocytosis' when verb form is intended.
Practice
Quiz
What is the direct antonym of 'exocytose'?
FAQ
Frequently Asked Questions
No, it is a highly specialised technical term used almost exclusively in cell biology and related fields.
No. The correct noun form is 'exocytosis'. 'Exocytose' is specifically the verb.
'Exocytose' is a specific mechanism of secretion. All exocytosis is secretion, but not all secretion (e.g., diffusion) occurs via exocytosis.
Yes, 'exocytotic' is the standard adjective (e.g., exocytotic pathway, exocytotic release).