anneau — meaning in English
French → English · translate English → French instead
English meaning
Senses
anneau is used for these senses in English:
- annulus (botany) A structure surrounding a sporangium (or part of it) which shrinks and causes it to rupture for spore dispersal; specifically, in a fern: a structure around about two-thirds of the sporangium consisting of differentially thick-walled cells which dry and distort the sporangium; and in a moss: a complete ring of cells around the tip of the sporangium which dissolves to cause the tip to detach.
- ring (jewelry) A round piece of (precious) metal worn around the finger or through the ear, nose, etc.
- ring (analysis, measure theory) A family of sets that is closed under finite unions and set-theoretic differences.
annulus — full definition
- noun A ring- or donut-shaped area, object, or structure.
- noun A ring of fibrous tissue; specifically (cardiology), such a ring around an opening of a heart valve, to which the valve leaflets and muscle fibres of the atria and ventricles are attached; an annulus fibrosus cordis.
- noun A ring of light in a celestial body, especially when caused by an annular eclipse (for example, when the Sun and Moon are in line with the Earth, but the Moon does not completely cover the Sun's disc).
- noun A structure surrounding a sporangium (or part of it) which shrinks and causes it to rupture for spore dispersal; specifically, in a fern: a structure around about two-thirds of the sporangium consisting of differentially thick-walled cells which dry and distort the sporangium; and in a moss: a complete ring of cells around the tip of the sporangium which dissolves to cause the tip to detach.
ring — full definition
- noun A small circular band, often worn on a finger as jewelry.
- noun A roughly circular arrangement or shape, or an enclosed area used for a contest such as boxing.
- verb To make a clear, resonant sound, as a bell does; also, to telephone someone.