This higher density has the effect that at subduction zones the oceanic lithosphere invariably sinks underneath the overriding lithosphere, which can be oceanic or continental. New oceanic lithosphere is constantly being produced at mid-ocean ridges and is recycled back to the mantle at subduction zones.
poor. adj. poorÂ·er, poorÂ·est. 1. a. Having insufficient wealth to meet the necessities or comforts of life or to live in a manner considered acceptable in a society. b. Relating to or characterized by poverty: the poor side of town. 2. Deficient or lacking in a specified resource or quality: an area poor in timber and coal; a diet poor in calcium. 3. Not adequate in quality or quantity; inferior: a poor performance; poor wages.
Their names often signified some quality of a horse; as Leucippus, a white horse, &c. Having never tasted it, I can bear no testimony to its quality. My conception of the love of God lacked just that qualityâintensity. This says nothing of the quality of my work, which, humble as it may be, is simply the best I know how to do. The quality of sincerity in Dick's voice was more convincing than any vow might have been. How can the quality of eggs be determined: (a) in the market? How may the kind and quality of flour be judged in purchasing it? So it is with war, and the quality of both is best discovered by sipping. Power of sustentation; the quality of sustaining a weight in the air. It is the deficiency, and not the excess of this quality, that is to be feared.