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May 24, 2012
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Dictionary


arched' truss'




a truss having an archlike form but unlike a true arch in that it is free to move horizontally at its base, as in expanding or contracting because of temperature changes. Cf. braced arch.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

archedarchegonium
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