chemotropism: meaning, definition, pronunciation and examples
C2Technical/Scientific
Quick answer
What does “chemotropism” mean?
the growth or movement of an organism, especially a plant or microorganism, in response to a chemical stimulus.
Audio
Pronunciation
Definition
Meaning and Definition
the growth or movement of an organism, especially a plant or microorganism, in response to a chemical stimulus.
A directional biological response (such as growth of pollen tubes towards ovules, or movement of certain immune cells towards infection sites) guided by chemical gradients.
Dialectal Variation
British vs American Usage
Differences
Spelling and pronunciation are identical. Usage is identical across scientific communities.
Connotations
No differential connotations.
Frequency
Extremely rare in general discourse; appears with similar low frequency in specialized biological texts in both regions.
Grammar
How to Use “chemotropism” in a Sentence
[Subject] exhibits chemotropism toward/in response to [chemical/stimulus][Chemical] induces chemotropism in [organism]Vocabulary
Collocations
Examples
Examples of “chemotropism” in a Sentence
verb
British English
- The hyphae chemotropise towards the nutrient source.
American English
- The pollen tube chemotropizes toward the ovule.
adverb
British English
- The tube grew chemotropically.
American English
- The cells migrated chemotropically toward the signal.
adjective
British English
- The chemotropic response was measured.
- A chemotropic factor.
American English
- Researchers identified a chemotropic agent.
- The chemotropic effect was significant.
Usage
Meaning in Context
Academic
Used in plant physiology, cell biology, microbiology, and immunology research papers to describe directional responses to chemical gradients.
Everyday
Virtually never used in everyday conversation.
Technical
Core term in specific biological subfields; precision is required.
Vocabulary
Synonyms of “chemotropism”
Neutral
Weak
Vocabulary
Antonyms of “chemotropism”
Watch out
Common Mistakes When Using “chemotropism”
- Confusing 'chemotropism' (growth response) with 'chemotaxis' (movement response).
- Misspelling as 'chemotrpism' or 'chemotropysm'.
- Using it as a verb (e.g., 'It chemotropes') – no standard verb form exists.
FAQ
Frequently Asked Questions
No. Chemotropism refers specifically to directional growth (e.g., of a plant root or fungal hypha). Chemotaxis refers to directional movement of a motile cell or organism (e.g., a white blood cell moving towards bacteria).
Typically no. Animals exhibit chemotaxis (movement). Chemotropism is primarily a term used for plants, fungi, and some stationary cells/organisms that grow directionally.
Root growth away from a toxic substance in the soil is an example of negative chemotropism.
It is a highly specialized scientific term, unknown to most general English speakers and used almost exclusively in academic biology contexts.
the growth or movement of an organism, especially a plant or microorganism, in response to a chemical stimulus.
Chemotropism is usually technical/scientific in register.
Chemotropism: in British English it is pronounced /kɪˈmɒtrəpɪz(ə)m/, and in American English it is pronounced /kəˈmɑːtrəˌpɪzəm/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
CHEMO (chemical) + TROPISM (turning/growth toward a stimulus) = growth turned by chemicals.
Conceptual Metaphor
NAVIGATION BY SMELL (an organism 'sniffs' its way toward a chemical target).
Practice
Quiz
What is the primary characteristic of chemotropism?