First, absorption helps people by preventing high-energy radiation from reaching the surface which limits our exposure to harmful radiation. The atmosphere absorbs most of the radiation from the ultraviolet region through the X-ray region. The second way in which absorption helps the earth is as a heat source for it.
*lean times (ahead). Fig. a future period of lowered income or revenue; a future period when there will be shortages of goods and suffering. (*Typically: be ~; cause ~; have ~; mean ~ .) The economy is going sour which means lean times ahead.
Webster Dictionary(0.00 / 0 votes)Rate this definition: Lean(verb) to conceal. Lean(verb) to incline, deviate, or bend, from a vertical position; to be in a position thus inclining or deviating; as, she leaned out at the window; a leaning column.