spicule
[ spik-yool ]
/ ˈspɪk yul /
noun
a small or minute, slender, sharp-pointed body or part; a small, needlelike crystal, process, or the like.
Zoology.
one of the small, hard, calcareous or siliceous bodies that serve as the skeletal elements of various marine and freshwater invertebrates.
Astronomy.
a jet of gas several hundred miles in diameter rising from the sun's surface to heights of 3000 to 6000 miles (4800 to 9600 km).
Words nearby spicule
spick and span,
spick-and-span,
spicula,
spiculate,
spiculation,
spicule,
spiculum,
spicy,
spide,
spider,
spider crab
Example sentences from the Web for spicule
The shaft of the spicule is generally slender and of considerable length.
Freshwater Sponges, Hydroids & Polyzoa |Nelson AnnandaleThe spicule thus resembles a little trumpet resting on its mouth.
Freshwater Sponges, Hydroids & Polyzoa |Nelson AnnandaleHe had found, too, that all matter—every spicule of it—is exhausted in the relation.
The Church of St. Bunco |Gordon ClarkThe spores soon become free, but the spicule often still adheres to them; but they are not attached to the intermingled filaments.
Fungi: Their Nature and Uses |Mordecai Cubitt Cooke
British Dictionary definitions for spicule
spicule
/ (ˈspɪkjuːl) /
noun
Also called: spiculum
a small slender pointed structure or crystal, esp any of the calcareous or siliceous elements of the skeleton of sponges, corals, etc
astronomy
a spiked ejection of hot gas occurring over 5000 kilometres above the sun's surface (in its atmosphere) and having a diameter of about 1000 kilometres
Derived forms of spicule
spiculate (ˈspɪkjʊˌleɪt, -lɪt), adjectiveWord Origin for spicule
C18: from Latin:
spiculum
Medical definitions for spicule
spicule
[ spĭk′yōōl ]
n. pl. spic•ules
A needlelike structure or part.
Other words from spicule
spic′u•lar (-yə-lər) null adj.Scientific definitions for spicule
spicule
[ spĭk′yōōl ]
A needlelike structure or part, such as one of the mineral structures supporting the soft tissue of certain invertebrates, especially sponges.
Any of numerous short-lived vertical jets of hot gas rising from the solar chromosphere and extending into the corona. Spicules, which only last for about five to ten minutes, are usually several hundred kilometers wide and several thousand kilometers high.