Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. Any of innumerable small bodies thought to have orbited the sun during the formation of the planets.
Century Dictionary and Cyclopedia
- Of or pertaining to a minute planet or planetary body.
- n. One of the minute bodies moving in planetary orbits, from time to time overtaking each other and coalescing, and so gradually building up the planets, according to the planetesimal hypothesis.
Wiktionary
- n. astronomy Any of many small, solid astronomical objects, that orbit a star and form protoplanets through mutual gravitational attraction
WordNet 3.0
- n. one of many small solid celestial bodies thought to have existed at an early stage in the development of the solar system
Etymologies
- planet + (infinit)esimal. (American Heritage® Dictionary of the English Language, Fourth Edition)
Examples
“The Murchison meteorite, as it is now known, is a fragment of a "planetesimal" or small, solid fragment that condensed out of the solar nebula as the solar system formed.”
“With all those Masonic symbols on its cover, I figured that CULTS, CONSPIRACIES AND SECRET SOCIETIES stood a small chance of being captured by THE LOST SYMBOL's commercial gravity, much as a tiny planetesimal can get pulled into a gas giant's orbit.”
“A handful of components, scraping iron ore from a planetesimal.”
“Thomas Chrowder Chamberlin (1843-1928) was a respected and influential American geologist and science educator who supported the concepts of multiple glaciation and planetesimal origin of the Earth, and was among the first to emphasize carbon dioxide as a major regulator of Earth's temperature.”
“Chamberlin disputed Kelvin's assumption of simple cooling from a molten origin because he was already formulating his own cold, planetesimal origin.”
“An astronaut who had made the impossibly long journey and knew precisely where to look would have seen it as a black dimple on the rocky/icy regolith of the host planetesimal.”
“Tendrils of it forced themselves into the loose material of the planetesimal, mining it for carbonaceous molecules.”
“We believe Phoebe is a good example of the fundamental building blocks of planets -- an icy planetesimal," he said, noting that such objects once filled the solar system.”
“THE most elaborate structure yet proposed to explain the origin of the solar system is the planetesimal hypothesis by”
“The authors call attention to the fact that the Sun's equator is inclined at a small angle, 7 degrees, to the common planes of the planetary system, and Chamberlin holds this to be one of the strong points in favor of the planetesimal hypothesis.”
Lists
These user-created lists contain the word ‘planetesimal’.
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science fact or fiction
pretty open-ended here—terms, ideas, lingo, technologies and phenomena (real or postulated) that are, were, should be or could be used in speculative fiction
tachyon, mecha, dropship, wetware, meatspace, nanobot, cloned meat, asteroid mining, hyperdrive, wormhole, parallel universe, distributed intel... and 464 more...
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phrontistery - p
from phrontistery.info
pustule, purulence, pushful, purser, purpureal, putative, purpure, purpresture, purloin, purline, purlieu, purlicue and 1766 more...
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Pet Rocks and Carbon Footprints
Soil samples for stone soup.
palynology, stratigraphy, tse'bit'ai, tse bitai, tse bit ai, bitai, minette, maar, lithosphere, peridotite, gneiss, gabbro and 115 more...
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astronomical
heat death, End of Greatness, dark flow, Lyman-alpha forest, supervoid, redshift, weakly interactin..., robust associatio..., light dark matter, dark matter halo, Great Attractor, warm dark matter and 101 more...
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wreckingball's Words
reprehensible, problematize, crepuscular, deleterious, pestilent, strumpet, draggletail, interrobang, meretricious, systematize, schadenfreude, capricious and 443 more...
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Mollusque's miscellany
A mixture of words that I like or have commented on, along with ones parked here so they'd be listed somewhere or remind me of lists I want to make.
oranger, monographer, preoccupied, bu, bobization, coinventor, tetrapyloctomy, borgmannian, suspercollate, manhug, mancrush, obituarist and 604 more...
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mmalone's Words
miasma, kitsch, equipoise, pinion, harbinger, mirabilis, annus mirabilis, skein, bulwark, capricious, fortuitous, planetesimal and 233 more...
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word set11
slipstreaming, derailleur, sapwood, obovate, wickerwork, rupestrine, orthographical, fructified, dynamometer, stolidity, shadow puppeting, hyperpolyglot and 63 more...
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words megan taught me
because she said so
Tweets
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