• Webster's Revised Unabridged Dictionary
    • n Hypotheca (Rom. Law) An obligation by which property of a debtor was made over to his creditor in security of his debt.☞ It differed from pledge in regard to possession of the property subject to the obligation; pledge requiring, simple hypotheca not requiring, possession of it by the creditor. The modern mortgage corresponds very closely with it.
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Century Dictionary and Cyclopedia
    • n hypotheca The inner half of the frustule of a diatom.
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Webster's Revised Unabridged Dictionary
L., fr. Gr. a thing subject to some obligation, fr. to put under, put down, pledge. See Hypothesis