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A class of Echinodermata including the true starfishes. The rays vary in number and always have ambulacral grooves below. The body is starshaped or pentagonal.
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The point on the side of the skull where the lambdoid, parieto-mastoid and occipito-mastoid sutures.
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A genus of fishes, some of which were eighteen or twenty feet long, found in a fossil state in the Old Red Sandstone.
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A fossil plant from the coal formations of Europe and America, now regarded as the branchlets and foliage of calamites.
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A disease, characterized by difficulty of breathing (due to a spasmodic contraction of the bronchi), recurring at intervals, accompanied with a wheezing sound, a sense of constriction in the chest, a cough, and expectoration.
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