spiculum
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Rossiter in this autumn of 1917 was extremely interested in certain crucial experiments he was making with spiculum in sponge-cells; with scleroblasts, "mason-cells," osteoblasts, and "consciousness" in bone-cells.
From Mrs. Warren's Daughter A Story of the Woman's Movement by Sir Harry Hamilton Johnston
Some of the fibres are thickly covered with extremely minute spicula, occasionally aggregated into little tuffs; and hence they have a hairy appearance.
From Volcanic Islands by Charles Darwin
The whole surface is uniformly covered with short compressed calcareous spicula embedded in the cuticle.
From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 2 "Chicago, University of" to "Chiton" by Various
As the flakes fall down through the atmosphere, they are joined by more of these radiated spicula, and thus increase in bulk like the drops of rain or hail-stones.
From The Mirror of Literature, Amusement, and Instruction Volume 13, No. 358, February 28, 1829 by Various
The silicious particles which constitute this mud, are derived, in part, from the diatomaceous plants and radiolarian animals which throng the surface, and, in part, from the spicula of sponges which live at the bottom.
From Discourses Biological and Geological Essays by Thomas Henry Huxley
When nearly on the crest of the Portillo, we were enveloped in a falling cloud of minute frozen spicula.
From The Voyage of the Beagle by Charles Darwin
