Duraluminprop. n. [a trademark.] an aluminum-based alloy which is both light and strong, containing 4 per cent of copper and 0.5 per cent of magnesium and smaller amounts of iron, manganese, and silicon. It hardens with aging at room temperature.
[WordNet 1.5 +PJC]
Du"ra ma"ter(?). [L., lit., hard mother. The membrane was called mater, or mother, because it was formerly thought to give rise to every membrane of the body.] (Anat.) The tough, fibrous membrane, which lines the cavity of the skull and spinal column, and surrounds the brain and spinal cord; -- frequently abbreviated to dura.
Du*ra"men(?), n. [L., hardness, a hardened, i. e., ligneous, vine branch, fr. durare to harden. See Dure.] (Bot.) The heartwood of an exogenous tree.
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Tue 22nd October 2019