| 单词 | sedimentary |
| 释义 | sedimentary (once / 9916 pages) adj Anything sedimentary is formed by or resembles sediment, which consists of little particles of earth that collect in natural bodies of water. If you ever walked in a lake barefoot and felt the grainy, rocky bottom of the lake, you know how sedimentary things feel. Sedimentary is also a type of rock that’s made from substances left from wind, water, or ice and have been pressed together over time. The other types of rock are igneous (made from lava) and metamorphic (changed from intense heat and pressure). Sedimentary things generally hang out at the bottom of lakes and ponds. WORD FAMILYsediment: sedimentary, sedimentation, sedimenting, sediments USAGE EXAMPLESMagnetics is complementary and says something about the presence of magmatic rocks and sedimentary basins. BBC(Dec 15, 2016) Charcoal, which is also used in radiocarbon dating, can move quite readily through certain sedimentary environments and can have contaminants. BBC(Nov 02, 2016) Like sedimentary rock, new layers keep accumulating, and that also applies to the team rosters. New York Times(Sep 29, 2016) 1adj resembling or containing or formed by the accumulation of sediment sedimentary deposits 2adj produced by the action of water Syn|Ant aqueous eruptive, igneous produced by the action of fire or intense heat |
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