Definition, Meaning, Synonyms & Anagrams | English word EXTINCTION

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Definitions of EXTINCTION

1. The action of making or becoming extinct; annihilation.
2. (astronomy) The absorption or scattering of electromagnetic radiation emitted by astronomical objects by intervening dust and gas before it reaches the observer.
3. (pathology) The inability to perceive multiple stimuli simultaneously.
4. (psychology) The fading of a conditioned response over time if it is not reinforced.

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Examples of Using EXTINCTION in a Sentence

• The central conflict leading to war was a dispute over whether slavery should be permitted to expand into the western territories, leading to more slave states, or be prohibited from doing so, which many believed would place slavery on a course of ultimate extinction.
• Its value depends on its intrinsic luminosity, its distance, and any extinction of the object's light caused by interstellar dust along the line of sight to the observer.
• An object's absolute magnitude is defined to be equal to the apparent magnitude that the object would have if it were viewed from a distance of exactly , without extinction (or dimming) of its light due to absorption by interstellar matter and cosmic dust.
• The Beer–Bouguer–Lambert (BBL) extinction law is an empirical relationship describing the attenuation in intensity of a radiation beam passing through a macroscopically homogenous medium with which it interacts.
• The fossil record shows that birds are feathered dinosaurs, having evolved from earlier theropods during the Late Jurassic epoch, and are the only dinosaur lineage known to have survived the Cretaceous–Paleogene extinction event approximately 66 mya.
• The earldom of Marlborough was held by the family of Ley from its creation in 1626 until its extinction with the death of the 4th earl in 1679.
• The end is set at a major extinction event called the Grande Coupure (the "Great Break" in continuity) or the Eocene–Oligocene extinction event, which may be related to the impact of one or more large bolides in Siberia and in what is now Chesapeake Bay.
• About 129 species of birds have become extinct since 1500, and the rate of extinction seems to be increasing.
• An extinction event (also known as a mass extinction or biotic crisis) is a widespread and rapid decrease in the biodiversity on Earth.
• The Holocene extinction, or Anthropocene extinction, is the ongoing extinction event caused by humans during the Holocene epoch.
• The start of the Jurassic was marked by the major Triassic–Jurassic extinction event, associated with the eruption of the Central Atlantic Magmatic Province (CAMP).
• The number of timber-framed houses slowly declined over the years, as did the population - from over 200 at its peak, to the point when the village was on the brink of extinction.
• Over the following five centuries, the powerful House of Luxembourg emerged, but its extinction put an end to the country's independence.
• It was already a rare duck before European settlers arrived, and as a result of its rarity, information on the Labrador duck is not abundant, although some, such as its habitat, characteristics, dietary habits and reasons behind its extinction, are known.
• Noah then labors faithfully to build the Ark at God's command, ultimately saving not only his own family, but mankind itself and all land animals, from extinction during the Flood.
• It is Earth's most severe known extinction event, with the extinction of 57% of biological families, 83% of genera, 81% of marine species It is the greatest of the "Big Five" mass extinctions of the Phanerozoic.
• Sforza rule began with the family's acquisition of the Duchy of Milan following the extinction of the Visconti family in the mid-15th century and ended with the death of the last member of the family's main branch, Francesco II Sforza, in 1535.
• Stellar astronomy – concerned with Star formation, physical properties, main sequence life span, variability, stellar evolution and extinction.
• The Triassic began in the wake of the Permian–Triassic extinction event, which left the Earth's biosphere impoverished; it was well into the middle of the Triassic before life recovered its former diversity.
• The period began with the extinction of the non-avian dinosaurs in the Cretaceous–Paleogene extinction event, at the start of the Cenozoic Era, and extended to the beginning of the Quaternary glaciation at the end of the Pliocene Epoch.

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