annule
annule — noun
1. a structure, band, or marking that is shaped like a complete ring, often found i
a structure, band, or marking that is shaped like a complete ring, often found in scientific contexts — for instance, the ring of tissue that holds a mushroom's cap to its stem, the thin circle of light seen around the moon during an annular eclipse, or the area between two concentric circles in geometry.
In botany class, Layla drew the pale annule holding the mushroom cap to its stalk.
collocation: annule + of tissue/mushroom
The bright annule of sunlight grew thinner as the eclipse reached its peak.
Geometry students calculated the area of the annule between two circles with different radii.
An MRI revealed a tear in the fibrous annule around Hiro's spinal disc.
Imani identified the thin brown annule on the fern stem as a natural growth pattern.
- ring
everyday word for any circular object; much more common and less technical than 'annule'
- annulus
the full Latin-derived form; preferred in formal scientific writing and identical in meaning
- circle
general term for a round shape; 'annule' specifically implies a band or ring rather than a filled-in disk
文法句型
annule + of + noun phrase
用法筆記
Frequently used in technical or scientific writing rather than everyday speech. The simpler word 'ring' is preferred in informal contexts. In anatomy, 'annule' often refers specifically to the tough outer layer of an intervertebral disc.