era
e·ra / ˈi(ə)rə; ˈerə/ • n. a long and distinct period of history with a particular feature or characteristic: the era of glasnost. ∎ a system of chronology dating from a particular noteworthy event: the dawn of the Christian era. ∎ Geol. a major division of time that is a subdivision of an eon and is itself subdivided into periods: the Mesozoic era.
era
era First-order geologic time unit composed of several periods. The Mesozoic Era, for example, is composed of the Triassic, Jurassic, and Cretaceous Periods. When used formally, as above, the initial letter of the term is capitalized.
era
era A first-order geological time unit composed of several periods. The Mesozoic Era, for example, is composed of the Triassic, Jurassic, and Cretaceous Periods, dating from approximately 248 Ma to 65 Ma. When used formally the initial letter is capitalized. The equivalent chronostratigraphic unit is the erathem.
era
era A first-order geological time unit composed of several periods. The Mesozoic Era, for example, is composed of the Triassic, Jurassic, and Cretaceous Periods, dating from approximately 248 Ma to 65 Ma. When used formally, the initial letter is capitalized.
ERA
ERA Baseball earned run average
• (USA) Economic Regulatory Administration
• Education Reform Act (1988)
• Electrical Research Association
• electronic reading automation
• Electronic Rentals Association
• (USA) Emergency Relief Administration
• engine-room artificer
• Computing entity relationship attribute (as in ERA diagram, ERA model)
• (USA) Equal Rights Amendment
• European Ramblers' Association
• Evangelical Radio Alliance
• (USA) Economic Regulatory Administration
• Education Reform Act (1988)
• Electrical Research Association
• electronic reading automation
• Electronic Rentals Association
• (USA) Emergency Relief Administration
• engine-room artificer
• Computing entity relationship attribute (as in ERA diagram, ERA model)
• (USA) Equal Rights Amendment
• European Ramblers' Association
• Evangelical Radio Alliance
ERA
ERA • abbr. ∎ Baseball earned run average. ∎ Equal Rights Amendment.
era
era system of chronology reckoned from a point of time; date from which a period is reckoned XVII; period or epoch XVIII. — late L. æra, orig. pl. of æs æris copper, in the sense ‘counters (for calculation)’, used as fem. sg. for ‘number used as a basis of reckoning’, ‘epoch from which time is reckoned’.
More From encyclopedia.com
Mesozoic Era , In geologic time , the Mesozoic Era, the second era in the Phanerozoic Eon , spans the time between roughly 250 million years ago (mya) and 65 mya.
T… Paleozoic , Palaeozoic The first (570–248 Ma) of the three eras of the Phanerozoic. The Cambrian, Ordovician, and Silurian Periods together form the Lower Palaeo… Paleozoic Era , In geologic time , the Paleozoic Era, the first era in the Phanerozoic Eon , covers the time between roughly 544 million years ago (mya) and until 24… erathem , erathem The chronostratigraphic unit that is equivalent to the geologic-time unit era. An erathem comprises a number of systems grouped together and… Neogene , Neogene The later of the two periods which comprise the Tertiary sub-Era, preceded by the Palaeogene, followed by the Quaternary, and dated at 23.3–1… Allosaurus , Jurassic Central period of the Mesozoic era, lasting from 213 to 144 million years ago. In this period there were saurischian and ornithischian dinos…
You Might Also Like
NEARBY TERMS
era