cardioid: meaning, definition, pronunciation and examples
LowTechnical
Quick answer
What does “cardioid” mean?
A heart-shaped curve in mathematics or a directional microphone with a heart-shaped pickup pattern.
Audio
Pronunciation
Definition
Meaning and Definition
A heart-shaped curve in mathematics or a directional microphone with a heart-shaped pickup pattern.
Any heart-shaped object or pattern; used in geometry, acoustics, and electronics to describe specific heart-like forms.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or grammatical differences. Both use 'cardioid' identically in technical contexts.
Connotations
Connotations are purely technical and identical in both varieties.
Frequency
Equally low-frequency and technical in both UK and US English.
Grammar
How to Use “cardioid” in a Sentence
The [noun] has a cardioid pattern.A cardioid is a type of [noun].Vocabulary
Collocations
Examples
Examples of “cardioid” in a Sentence
adjective
British English
- The microphone's cardioid response was perfect for the soloist.
- He drew a cardioid curve on the board.
American English
- We need a cardioid mic for this podcast.
- The cardioid diagram illustrated the sound reception pattern.
Usage
Meaning in Context
Business
Rarely used, except in marketing for specific technical products like microphones.
Academic
Used in mathematics (geometry), acoustics, and engineering papers.
Everyday
Extremely rare in everyday conversation.
Technical
The primary domain. Refers to a specific geometric curve or microphone pickup pattern.
Vocabulary
Synonyms of “cardioid”
Neutral
Weak
Vocabulary
Antonyms of “cardioid”
Watch out
Common Mistakes When Using “cardioid”
- Misspelling as 'cardoid' or 'cardiode'.
- Using it in non-technical contexts where 'heart-shaped' is more appropriate.
FAQ
Frequently Asked Questions
No, it is a low-frequency, technical term used primarily in mathematics and audio engineering.
Cardioid refers to a heart-shaped, directional pickup/reception pattern (sensitive in front, rejecting sound from the rear). Omnidirectional means picking up sound equally from all directions.
Yes. As a noun, it refers to the heart-shaped curve itself (e.g., 'plot a cardioid'). As an adjective, it describes something with that shape or pattern (e.g., 'a cardioid microphone').
It comes from the Greek 'kardiá' (heart) and the suffix '-oid' (resembling).
A heart-shaped curve in mathematics or a directional microphone with a heart-shaped pickup pattern.
Cardioid is usually technical in register.
Cardioid: in British English it is pronounced /ˈkɑː.di.ɔɪd/, and in American English it is pronounced /ˈkɑːr.di.ɔɪd/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think of 'cardio' (heart) + '-oid' (resembling) = 'resembling a heart'.
Conceptual Metaphor
SHAPE IS FUNCTION (e.g., a heart-shaped pattern rejects sound from the rear).
Practice
Quiz
In which field is the term 'cardioid' NOT primarily used?