episternum: meaning, definition, pronunciation and examples
Very LowExclusively technical/scientific
Quick answer
What does “episternum” mean?
The upper, anterior segment of the sternum in mammals.
Audio
Pronunciation
Definition
Meaning and Definition
The upper, anterior segment of the sternum in mammals; the manubrium. In insects and other arthropods, it is a sclerite (plate) in the anterior part of the lateral thorax.
A specific bone or plate forming part of the anatomical structure in vertebrates and invertebrates, crucial for muscle attachment and structural support of the thoracic region.
Dialectal Variation
British vs American Usage
Differences
No significant difference in usage or meaning; the term is used identically in British and American scientific literature.
Connotations
None beyond its strict anatomical definition.
Frequency
Extremely rare outside specific anatomical, zoological, or entomological contexts in both varieties.
Grammar
How to Use “episternum” in a Sentence
The episternum [articulates/connects/is fused] with [another bone, e.g., the clavicle].Vocabulary
Collocations
Examples
Examples of “episternum” in a Sentence
adjective
British English
- The episternal notch was clearly visible on the scan.
American English
- The episternal morphology is a key diagnostic feature.
Usage
Meaning in Context
Business
Never used.
Academic
Used exclusively in specialised academic fields: anatomy, zoology, entomology.
Everyday
Never used.
Technical
The primary context. Used in technical descriptions, surgical guides, and taxonomic keys.
Vocabulary
Synonyms of “episternum”
Neutral
Weak
Watch out
Common Mistakes When Using “episternum”
- Mispronouncing the stress (correct: ep-i-STER-num).
- Using it as a general term for any chest bone.
- Confusing its vertebrate and invertebrate definitions.
FAQ
Frequently Asked Questions
No. The sternum is the entire breastbone. In some contexts (especially vertebrate anatomy), the episternum refers specifically to the uppermost segment of the sternum, called the manubrium.
Only if you are studying or working in highly specialised fields like vertebrate anatomy, zoology, or entomology. It is not a word used in general English.
Yes, significantly. In mammals, it's a specific bone (the manubrium). In insects and other arthropods, it's a chitinous plate on the side of the thorax.
Yes, 'episternal' is used, as in 'episternal notch' or 'episternal plates'.
The upper, anterior segment of the sternum in mammals.
Episternum is usually exclusively technical/scientific in register.
Episternum: in British English it is pronounced /ˌɛpɪˈstɜːnəm/, and in American English it is pronounced /ˌɛpɪˈstɜːrnəm/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think: EPI (on/above) + STERNUM. It is the upper part of or the plate upon the sternum/thoracic structure.
Conceptual Metaphor
NA
Practice
Quiz
In which field is the term 'episternum' most likely to be used?