helix: meaning, definition, pronunciation and examples
C1Formal, Technical
Quick answer
What does “helix” mean?
A three-dimensional curve that coils around a central axis, resembling the shape of a spring, spiral staircase, or the structure of DNA.
Audio
Pronunciation
Definition
Meaning and Definition
A three-dimensional curve that coils around a central axis, resembling the shape of a spring, spiral staircase, or the structure of DNA.
In biology, the double helix structure of DNA. In architecture, a spiral ornament. In anatomy, the prominent rim of the outer ear. More generally, any coiled or spiral shape.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. Pronunciation differs slightly.
Connotations
Identical technical connotations.
Frequency
Equally frequent in respective technical/scientific registers.
Grammar
How to Use “helix” in a Sentence
the helix of [NOUN]a helix [VERB] around [NOUN]arranged in a helixtwisted into a helixVocabulary
Collocations
Examples
Examples of “helix” in a Sentence
verb
British English
- The wire was carefully heliced around the core.
American English
- The vines helix around the old post.
adverb
British English
- [No standard adverbial form. 'Helically' is extremely rare/technical.]
American English
- [No standard adverbial form. 'Helically' is extremely rare/technical.]
adjective
British English
- The sculpture had a distinct helicoid form.
American English
- They studied the helical structure of the virus.
Usage
Meaning in Context
Business
Rare. Potentially in design, architecture, or biotechnology contexts (e.g., 'The new logo features a double helix motif').
Academic
Common in biology, chemistry, physics, mathematics, and architecture (e.g., 'The protein's secondary structure is an alpha helix').
Everyday
Limited. Most common in reference to DNA (e.g., 'the double helix of DNA').
Technical
Core term in geometry, molecular biology, engineering, and anatomy (e.g., 'Calculate the pitch of the helix').
Watch out
Common Mistakes When Using “helix”
- Confusing 'helix' (3D spiral) with 'spiral' (can be 2D). Using 'helix' for any curved line. Incorrect plural: 'helixes' is acceptable but 'helices' /ˈhɛlɪsiːz/ is standard in technical contexts.
FAQ
Frequently Asked Questions
Not exactly. A helix is a three-dimensional spiral, like a spring or corkscrew, that moves around a central axis. A spiral is often two-dimensional, like a curled-up snake or the pattern on a snail's shell.
A helix describes the specific geometric shape. A 'coil' is often one loop or turn of a helix, or refers to something wound in a helix shape (e.g., a coil of rope).
An 'alpha helix' is a common protein structure where the chain twists into a right-handed helix. The 'double helix' is the structure of DNA, where two polymer chains twist around each other.
It is pronounced /ˈhɛlɪsiːz/ (HEL-i-seez). The less common plural 'helixes' is also acceptable.
A three-dimensional curve that coils around a central axis, resembling the shape of a spring, spiral staircase, or the structure of DNA.
Helix is usually formal, technical in register.
Phrases
Idioms & Phrases
- “[No common idioms for 'helix'. A technical term.]”
Learning
Memory Aids
Mnemonic
Imagine a HELI-X (helicopter) landing in a spiral, coiling descent to remember its spiral shape.
Conceptual Metaphor
THE SHAPE OF LIFE/FUNDAMENTAL STRUCTURE (via DNA double helix).
Practice
Quiz
In which field is the term 'helix' LEAST commonly used?