释义 |
ageing /ˈeɪdʒɪŋ /(US aging) noun [mass noun]1The process of growing old: the external signs of ageing...- Scientists seeking to control the biological process of aging may also contemplate doing so through genetic manipulations.
- Traditionally, scientists believed that aging was a biological process in which cells simply stopped dividing.
- ‘We only think there's anything wrong with curing ageing because we've grown up with it as something ghastly but inevitable,’ he claims.
1.1The process of change in the properties of a material occurring over a period, either spontaneously or through deliberate action: the judicious use of oak ageing means the wines are capable of being confused with the great French Chardonnays...- Another method occurs in the winemaking process employing aging in new French oak barrels.
- Chablis District in northern Burgundy of France where a Chardonnay-based white wine is made, normally with little or no aging in small oak barrels.
- This temperature is fine for wines that will be drunk in the near future, but it will not allow for proper aging in wines looking for longer cellaring periods.
adjective1(Of a person) growing old; elderly: an ageing population...- The teenager and his ageing parents grow a small amount of rice but depend almost entirely on two buffaloes to maintain their precarious existence.
- The imminent campaign to attract staff from outside Scotland is prompted by concerns about the ageing teacher population and new commitments on class sizes.
- There is a shortage of doctors in certain rural and metropolitan areas and an ageing doctor population.
1.1(Of a thing) reaching the end of useful life: the world’s ageing fleet of oil tankers...- But these aging aircraft are reaching the end of their lifespans.
- Turning now to a multibillion dollar battle over the modernization of the U.S. military, the Air Force says it needs to replace its aging fleet of refueling tankers.
- Last year the Yorkshire Post revealed that the service's fleet of aging ambulances was so poor that many crews were referring emergencies to other stations as no ambulance was available
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