Definition of extinction | Bee Dictionary of English

n no longer active; extinguished
the extinction of the volcano
n no longer in existence
the extinction of a species
n the reduction of the intensity of radiation as a consequence of absorption and radiation
n complete annihilation
they think a meteor cause the extinction of the dinosaurs
n a conditioning process in which the reinforcer is removed and a conditioned response becomes independent of the conditioned stimulus
n the act of extinguishing; causing to stop burning
the extinction of the lights

Shizuo Kambayashi AP But it turns out that even during the relatively peaceful eras between global calamities, during what is known as background extinction, whole families of .
As demand for sushi threatens bluefin tuna with extinction, governments adopt quotas and activists threaten a boycott.
A new study finds that the risk for extinction isn't random it tends to run in evolutionary families, wiping out groups of species at a time.

Photos: Humpback whales flocking to Puget Sound, straits
Back from near extinction, humpback whales are showing up in Puget Sound and Northwest straits in numbers not seen for decades. “Humpback whales (Megaptera novaeangliae) are surfacing throughout the Sound and Straits, providing whale watchers a spectacular show and environmentalists, researchers and marine mammal scientists an up-close look at an extraordinary conservation success story,” writes ...
June 13, 2013 - seattlepi.com
Faith Middleton Chairs Pomperaug Watershed Group's Gala Woodbury Benefit June 15
Radio is an intimate medium, more so even than print publications that devotees love to touch and hold but proselytizers of digital primacy are hastening toward extinction.
June 13, 2013 - Litchfield County Times
New means to communicate population risk assessments among scientists and decision-makers
Population viability analyses (PVAs) are commonly used to assess extinction risks for species. Despite their many advantages and usefulness, many people find them hard to design, apply and communicate. In a new review, a team of researchers suggests that our capacity to learn from PVAs may be greatly improved using a common standard. The "DAC-PVA" protocol has hence been designed for supporting ...
June 11, 2013 - Science Daily

Ronald Reagan in Washington Times
As Ronald Reagan said, "Freedom is never more than one generation away from extinction."
Meave Leakey in USA Today
Paleontologist Meave Leakey, a Genographic adviser, commented: "Who would have thought that as recently as 70,000 years ago, extremes of climate had reduced our population to such small numbers that we were on the very edge of extinction."
Dirk Kempthorne in KSTP.com
This in my judgment makes the polar bear a threatened species, one likely to become in danger of extinction in the foreseeable future,said Interior Secretary Dirk Kempthorne, punctuating his point with an array of slides, charts and maps...

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