Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- adj. Biology Headless or lacking a clearly defined head: acephalous worms.
- adj. Having no leader.
Century Dictionary and Cyclopedia
- Without a head; headless: applied In zoology, particularly to the members of the class Acephala (which see): opposed to encephalous and cephalous.
- Without a leader or chief.
- Wanting a distinct beginning; indefinite in subject.
Wiktionary
- adj. Headless
- adj. zoology Without a distinct head; -- a term applied to bivalve mollusks.
- adj. botany Having the style spring from the base, instead of from the apex, as is the case in certain ovaries
- adj. Without a leader or chief.
- adj. Wanting the beginning
- adj. prosody Deficient in the beginning, as a line of poetry that is missing its expected opening syllable - Brande
GNU Webster's 1913
- adj. Headless.
- adj. (Zoöl.) Without a distinct head; -- a term applied to bivalve mollusks.
- adj. (Bot.) Having the style spring from the base, instead of from the apex, as is the case in certain ovaries.
- adj. Without a leader or chief.
- adj. Wanting the beginning.
- adj. (Pros.) Deficient at the beginning, as a line of poetry.
WordNet 3.0
- adj. lacking a head or a clearly defined head
Etymologies
- From French acéphale, from Ancient Greek ἀκέφαλος (akephalos, "headless"), from ἀ- ("not") + κεφαλή (kephalē, "head"). (Wiktionary)
- From Medieval Latin acephalus, from Greek akephalos : a-, without; see a-1 + kephalē, head; see -cephalous. (American Heritage® Dictionary of the English Language, Fourth Edition)
Examples
“The state had been erected upon lessons learned through centuries trying to maintain peace within an insular acephalous tribal society with a penchant for infighting and was most functional when it resembled a "loose" confederation in which legislative and judicial powers were pushed down to the local level - a concept analogous to America's states' rights.”
The Huffington Post: Michael Hughes: Afghanistan Corrupted by U.S. and 30 Years of Foreign Meddling
“John: another of their great exchanges (about then Brave Jeff Francoeur) was preserved here at blog I can't link to, but if you Google "Hernandez awkward introductions acephalous" you can find it. keith hernandez and his dog, duncan”
“This excerpt sums up the modus operandi of a rogue vice presidency in an at-times acephalous executive branch:”
William E. Jackson Jr.: The Vices of Cheney: The Burden is Upon the House Judiciary Committee
“On the one hand, by providing formerly acephalous societies with formal leaders and symbols of legitimate (that is, VOC-enforced) authority, the company managed to integrate these societies into a greater chain of command: Elders commanded villages, governor commanded elders, governor-general commanded governor, etc.”
“Note 53: As Blussé shows, the lack of headmen was a problem from the start for the missionaries, who found it nearly impossible to enforce Christian conduct in such an acephalous society.”
“The admirable phrase, “A man with a special subject,” might have been invented on purpose for these acephalous species in the domain of literature and politics.”
“A clumsy affair called a catamaran, the acephalous ancestor of the torpedo, was expected to relieve the sea of some thousands of people who had no business there.”
““Eaten him?” said the nightmare at his ear; and he sickened for an instant at the idea of rent, human remains absorbed and crushed into all that acephalous clockwork.”
“Eaten him?" said the nightmare at his ear; and he sickened for an instant at the idea of rent, human remains absorbed and crushed into all that acephalous clockwork.”
“In contrast, we know relatively little about acephalous societies, although the archaeological excavations at Igbo - Ukwe in southeastern Nigeria demonstrate that complex political organizations may have existed even in societies without rulers.”
Lists
These user-created lists contain the word ‘acephalous’.
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Prosody
Your terms and additions are welcome.
headless iamb, tailless trochee, dibrach, disyllable, trisyllable, tetrasyllable, pyrrhus, iamb, trochee, choree, choreus, tribrach and 203 more...
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Logolepsy
"Luciferous Logolepsy is a collection of over 9,000 obscure English words. Though the definition of an 'English' word might seem to be straightforward, it is not. There exist so many adopted, deriv...
Anschauung, Areopagus, Argus, Briarean, Dei gratia, Dei judicium, Deo volente, Duecento, Foehn, Geflugelte Worte, Gegenschein, Hakenkreuz and 9230 more...
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euphonic logorrhea
cephalopodous, plumulaceous, oblomovism, etiolation, pavonine, somnolent, logorrhea, fulguration, gossamer, prestidigitation, daffodil, inchoate and 174 more...
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Naresh_Gre
The path meanders through the vineyards
meander, labyrinth, Sinuous, gyrate, caron, awry, credo, banter, juxtaposition, argot, inexorable, foibles and 223 more...
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ADW2
nudnik, temper, intercalate, cleave, scowl, chapfallen, malapropos, disport, annals, paean, paradisiacal, whet and 362 more...
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As soon as I finish this chapter
x
procrastination, drily, rheumatism, rheum, suint, tiresome, wearisome, tiring, suboptimal, subpar, subprime, grange and 190 more...
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What David Foster Wallace circled in ...
ablative, ablaut, abulia, acephalous, ACTH, adit, adumbrate, agrapha, ailanthus, aleatory, alfresco, algolagnia and 474 more...
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learning
A list of words whose meanings I am learning, either because a) I don't know the meaning b) I know the meaning, but could stand to better appreciate certain inflections or secondary meanings or c) ...
louche, educe, loam, cob, sclerotic, palliate, axial, syndicalist, ecumenical, sally, fatuous, parvenu and 1387 more...
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What David Foster Wallace Circled in ...
http://www.slate.com/id/2250784/
ablative absolute, ablaut, abulia, acephalous, ACTH, adit, adumbrate, agrapha, aleatory, ailanthus, alfresco, algolagnia and 482 more...
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Adjectival Arcana
A roster of adjectives that infrequently surface in typical conversation and writing. Many are dredged from scientific or other technical jargon or sieved from examples of disused archaic forms.
unitegmic, acaulescent, reticuloendothelial, ingressive, uniate, acanthopterygian, ossific, epiphysial, perivisceral, acœlomatous, cestoid, acælomate and 7756 more...
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Annsley's list
churlish, bibulous, salt, salty, conjugal, fabulist, maw, primordial, chimera, emetic, surly, excrescence and 228 more...
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To Learn
paratonnerre, apophenia, aposiopesis, compline, rebarbatiive, comity, averruncate, apodictic, apophasis, farouche, accismus, abligurition and 157 more...
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Snaily, clammy, squidy
The list is mainly a vehicle to give some quotations about mollusks, so check the comments.
oyster, snail, nacre, clam, paua, slug, limpet, shell, scallop, whelk, winkle, conchology and 26 more...
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EmperorNorton's list
Just interesting words.
trochar, choculate, gruntle, kvetch, uxorilocal, usufruct, kaput, acephalous, ambient, combobulate, manbrat, neologism and 5 more...
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Words I've learned just now
Words I saw in a sentence somewhere and didn't know them well enough before.
iconoclasm, anomie, epigone, bourdon, pugilistic, beatific, apostasy, sublunary, cachinnation, truculent, gloaming, punctilious and 79 more...
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Cpuls's Words
a fortiori, abderian, abecedarian, ablate, abnegation, abnormous, abrade, abscess, abut, accimus, acclivity, accouchement and 18 more...
Tweets
Looking for tweets for acephalous.

mollusque What marvel, that we have sold our birth-right to an acephalous mollusk, when the simple use of the tongue has passed into such headless mongreldom?
--Richard Blackmore, 1884, Tommy Upmore Nov 10, 2007