| 单词 | mattress |
| 释义 | Word Frequency mattress(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. a concrete or steel raft or slab used as a foundation or footing Sometimes shortened to: mat4. a network of reinforcing rods or expanded metal sheeting, used in reinforced concrete 5. civil engineering another name for blinding (sense 3) Word origin C13: via Old French from Italian materasso, from Arabic almatrah place where something is thrown |
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