Definitions
from The Century Dictionary.
- noun A Linnean genus of Laridæ, typical of the subfamily Sterninæ, and containing all the terns or sea-swallows, or variously restricted.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun Plural form of
sternum .
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a genus of Sterninae
Etymologies
Sorry, no etymologies found.
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Examples
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In the past there was commercial over-exploitation of the sea cucumbers Isostichopus fuscus and Parastichopus parvimensis, of mother-of-pearl Pinctada mazatlanica and winged oysters Pteria sterna.
Islands and Protected Areas of the Gulf of California, Mexico 2008
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Out of 141 sterna between the time of birth and the age of sixteen years, Paterson (op. cit.) found the fourth or lowest center for the body present only in thirty-eight casesi. e.,
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If we combine these bits of information, the logical conclusion is that non-avian theropods were using their sterna and sternal ribs to ventilate their abdominal air-sacs, and here is the avian condition, albeit in less 'extreme' form.
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To their credit, Quick & Ruben (2009) do note that some birds (including kiwis, emus and the extinct elephant birds and mihirungs) have very small sterna that don't extend as far posteriorly as the abdominal air-sacs: these sterna are actually smaller, compared to trunk length, than those of such non-avian saurischians as dromaeosaurs and diplodocoid and macronarian sauropods (Wedel 2007).
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If we combine these bits of information, the logical conclusion is that non-avian theropods were using their sterna and sternal ribs to ventilate their abdominal air-sacs, and here is the avian condition, albeit in less 'extreme' form.
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The idea that birds rely on dorsoventral movement of their sterna, and that a huge sternum and associated mobile, ossified sternal ribs are a requirement for avian-style respiration, has been heavily promoted in other Ruben and colleagues papers
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The idea that birds rely on dorsoventral movement of their sterna, and that a huge sternum and associated mobile, ossified sternal ribs are a requirement for avian-style respiration, has been heavily promoted in other Ruben and colleagues papers
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Dando nempe se ipsum dare videndum, et sterna feltcitate fruendum.
Tractatus theologicus de charitate, in quo expenditur systema J.V. Bolgenj de amore Dei. Accedit ... Joseph Chantre Herrera, Giovanni Vincenzo Bolgeni 1792
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Bo* naventurae. loio cum dicat, bona sterna aliud esse nihil 9 quam Dt*
Tractatus theologicus de charitate, in quo expenditur systema J.V. Bolgenj de amore Dei. Accedit ... Joseph Chantre Herrera, Giovanni Vincenzo Bolgeni 1792
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Hi autem loquebantur bypotheticei et sub eonditione impossibl - li I unde nunquam habuere actum absolutum efficacem lenuntiationif sterna!
Tractatus theologicus de charitate, in quo expenditur systema J.V. Bolgenj de amore Dei. Accedit ... Joseph Chantre Herrera, Giovanni Vincenzo Bolgeni 1792
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