| 单词 | porosity |
| 释义 | porosity (once / 50946 pages) n Porosity is the quality of being porous, or full of tiny holes. Liquids go right through things that have porosity. Go back far enough and you’ll find that porosity stems from the Greek word poros for "pore," which means “passage.” So something with porosity lets things through. Most pants have porosity, as you unfortunately notice when you spill soup on them — the soup goes right through. On the other hand, a raincoat has no porosity because it's waterproof. If your roof is leaking during the rain, it has some porosity, which is a problem. You can remember porosity by imagining liquids pouring through things. WORD FAMILYporosity: porosities+/pore: pored, pores, poring, porous/porous: nonporous, porosity, porousness USAGE EXAMPLESThe porosity of all those gates prompts the question of what, to the builders of Hadrian’s Wall, constituted a border. The New Yorker(Dec 11, 2016) Parts of the surface, like the rocky region where Rosetta’s lander Philae wound up, are more dense, with a porosity lower than 50 percent. New York Times(Sep 30, 2016) The porosity of walls is best illustrated by the most famous of all pre-modern barrier walls: the 5,500-mile-long Great Wall of China. Washington Post(Jul 29, 2016) n the property of being porous; being able to absorb fluids Syn|Ant|Hypo|Hyper porousness solidity, solidness the consistency of a solid sponginess the porosity of a sponge permeability, permeablenessthe property of something that can be pervaded by a liquid (as by osmosis or diffusion) absorbencythe property of being absorbent body, consistence, consistency, eubstance the property of holding together and retaining its shape |
| 随便看 |
英语词典包含147318条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。