Webster's 1828 Dictionary
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ECH'INITE, noun [See Echinus.] A fossil found in chalk pits, called centronia; a petrified shell set with prickles or points; a calcarious petrifaction of the echinus or sea-hedgehog.
ECH'INITE, noun [See Echinus.] A fossil found in chalk pits, called centronia; a petrified shell set with prickles or points; a calcarious petrifaction of the echinus or sea-hedgehog.