extension table
 伸縮桌


 Ex·ten·sion n.
 1. The act of extending or the state of being extended; a stretching out; enlargement in breadth or continuation of length; increase; augmentation; expansion.
 2. Physics That property of a body by which it occupies a portion of space.
 3. Logic & Metaph. (a) Capacity of a concept or general term to include a greater or smaller number of objects; -- correlative of intension.  (b) the class or set of objects to which a term refers; -- contrasted with intension, the logical specification which defines members of a class, being the set of attributes which are necessary and sufficient to recognize an object as a member of the class.
    The law is that the intension of our knowledge is in the inverse ratio of its extension.   --Sir W. Hamilton.
    The extension of [the term] plant is greater than that of geranium, because it includes more objects.   --Abp. Thomson.
 4. Surg. The operation of stretching a broken bone so as to bring the fragments into the same straight line.
 5. Physiol. The straightening of a limb, in distinction from flexion.
 6. Com. A written engagement on the part of a creditor, allowing a debtor further time to pay a debt.
 Counter extension. Surg. See under Counter.
 Extension table, a table so constructed as to be readily extended or contracted in length.

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