Definitions
spiculum Tweet Definition of spiculum Like Definition of spiculum on Facebook
noun (spicula)
  1. A sharp, pointed crystal, especially of ice.
  2. (zoology) A sharp, needle-like structure, especially those making up the skeleton of a sponge.
  3. (astronomy) A small radial emission of gas seen in the chromosphere and corona of the sun.
Etymology: Modern Latin, an irregular diminutive of Latin spica "spike".


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