Example Sentences

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The silica was derived from the tests of radiolaria and the spicular skeletons of sponges.

From Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5 "Fleury, Claude" to "Foraker" by Various

Siliceous monaxon sponges in which the horny skeleton is much reduced or absent and the spicular skeleton is more or less definitely reticulate.

From Freshwater Sponges, Hydroids & Polyzoa by Annandale, Nelson

It spends its whole existence there, and is distinguished from other entozoa by having the mouth between two pores on each side, through which a spicular process comes out.

From A Treatise on Sheep: The Best Means for their Improvement, General Management, and the Treatment of their Diseases. by Blacklock, Ambrose

Paxilla: a small stake or peg: a bundle of spicular processes.

From Explanation of Terms Used in Entomology by Smith, John. B.

Both of these types go back to the Early Cambrian, and have continued side by side to the present day, as representatives of two distinct geometrical methods for the construction of a spicular skeleton.

From The Chain of Life in Geological Time A Sketch of the Origin and Succession of Animals and Plants by Dawson, Sir J. William