amphiaster: meaning, definition, pronunciation and examples
C2Technical/Scientific
Quick answer
What does “amphiaster” mean?
A biological structure formed in a cell during mitosis, consisting of two asters (clusters of microtubules) at opposite poles, connected by spindle fibres.
Audio
Pronunciation
Definition
Meaning and Definition
A biological structure formed in a cell during mitosis, consisting of two asters (clusters of microtubules) at opposite poles, connected by spindle fibres.
In cell biology, the double-star-shaped apparatus that forms during nuclear division, responsible for separating chromosomes to opposite ends of the dividing cell. It is the defining structure of the mitotic spindle.
Dialectal Variation
British vs American Usage
Differences
No significant spelling or usage differences. Pronunciations may follow regional patterns for the 'a' in 'amphi-' and the final 'r'.
Connotations
Purely technical in both varieties, with no differential connotations.
Frequency
Extremely low frequency in both varieties, restricted to advanced biological texts and discourse.
Grammar
How to Use “amphiaster” in a Sentence
The [ADJECTIVE] amphiaster forms in [CELL TYPE].Researchers observed the [PROCESS] of the amphiaster in [SPECIMEN].Vocabulary
Collocations
Examples
Examples of “amphiaster” in a Sentence
adjective
British English
- The amphiaster stage is critical for proper chromosome segregation.
American English
- Amphiaster formation was disrupted by the experimental treatment.
Usage
Meaning in Context
Business
Not used.
Academic
Exclusively in advanced biology, cytology, and genetics textbooks, papers, and lectures.
Everyday
Not used.
Technical
Core term in cell biology labs and detailed descriptions of the mitotic process.
Vocabulary
Synonyms of “amphiaster”
Vocabulary
Antonyms of “amphiaster”
Watch out
Common Mistakes When Using “amphiaster”
- Using 'amphiaster' to refer to just one aster or star-shaped cluster (it is the entire bipolar structure).
- Confusing it with 'centrosome' (which is the organelle that organizes the aster).
- Misspelling as 'amphi-aster' with a hyphen in modern continuous text.
FAQ
Frequently Asked Questions
Primarily for mitosis. While similar spindle structures exist in meiosis, the term 'amphiaster' is most commonly and specifically applied to the mitotic spindle.
An 'aster' is the star-shaped cluster of microtubules radiating from one centrosome. An 'amphiaster' (meaning 'double star') is the entire structure comprising the two asters at opposite poles and the spindle fibres connecting them.
No. It is a highly specialised, low-frequency technical term restricted to the field of cell biology. It is not used in everyday conversation or general texts.
Yes. From Greek 'amphi-' meaning 'on both sides, around' and 'astēr' meaning 'star'. It literally translates to 'double star'.
A biological structure formed in a cell during mitosis, consisting of two asters (clusters of microtubules) at opposite poles, connected by spindle fibres.
Amphiaster is usually technical/scientific in register.
Amphiaster: in British English it is pronounced /ˈæmfiˌæstə(r)/, and in American English it is pronounced /ˈæmfiˌæstər/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think of 'Amphi-Aster' as 'Amphi' (both sides) + 'Aster' (star). It's the DOUBLE-STAR structure that pulls the cell apart.
Conceptual Metaphor
A TUG-OF-WAR APPARATUS. The two asters are teams at opposite poles, with the spindle fibres as the rope, pulling the chromosomes to each side.
Practice
Quiz
What does an 'amphiaster' specifically refer to in cell biology?