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mattress

American  
[ma-tris] / ˈmæ trɪs /

noun

  1. a large pad for supporting the reclining body, used as or on a bed, consisting of a quilted or similarly fastened case, usually of heavy cloth, that contains hair, straw, cotton, foam rubber, etc., or a framework of metal springs.

  2. air mattress.

  3. a mat woven of brush, poles, or similar material, used to prevent erosion of the surface of dikes, jetties, embankments, dams, etc.

  4. a layer of concrete placed on bare ground, as to provide a footing; mat.

  5. a layer of any material used to cushion, protect, reinforce, or the like.


mattress British  
/ ˈmætrɪs /

noun

  1. a large flat pad with a strong cover, filled with straw, foam rubber, etc, and often incorporating coiled springs, used as a bed or as part of a bed

  2. Also called: Dutch mattress.  a woven mat of brushwood, poles, etc, used to protect an embankment, dyke, etc, from scour

  3. Sometimes shortened to: mat.  a concrete or steel raft or slab used as a foundation or footing

  4. a network of reinforcing rods or expanded metal sheeting, used in reinforced concrete

  5. civil engineering another name for blinding

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of mattress

1250–1300; Middle English materas < Old French < Italian materasso < Arabic maṭraḥ mat, cushion