• WordNet 3.6
    • n impost the lowest stone in an arch -- from which it springs
    • n impost money collected under a tariff
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Webster's Revised Unabridged Dictionary
    • Impost That which is imposed or levied; a tax, tribute, or duty; especially, a duty or tax laid by goverment on goods imported into a country. "Even the ship money . . . Johnson could not pronounce to have been an unconstitutional impost ."
    • Impost (Arch) The top member of a pillar, pier, wall, etc., upon which the weight of an arch rests.
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Century Dictionary and Cyclopedia
    • n impost That which is imposed or levied; a tax, tribute, or duty; particularly, a duty or tax laid by government on goods imported; a customs-duty. To prevent interference with national commerce by the separate States, the Constitution of the United States (art. I. § 10) provides that “no State shall, without the consent of the Congress, lay any imposts or duties on imports or exports, except what may be absolutely necessary for executing its inspection laws: and the net produce of all duties and imposts, laid by any State on imports or exports, shall be for the use of the treasury of the United States.”
    • n impost In architecture, the point where an arch rests on a wall or column; also, the condition of such resting or meeting. In classic architecture the impost is typically marked by a horizontal member; but in medieval work many different forms of imposts are used, and such horizontal members or moldings are frequently absent. Imposts have been classified as continuous imposts (see phrase below); discontinuous imposts, where the arch-moldings abut and are stopped on the pier; shafted imposts, where the arch-moldings spring from a capital and are different from those of the pier; and banded imposts, where the pier and arch have the same moldings.
    • n impost In sporting slang, a weight placed upon a horse in a handicap race.
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Chambers's Twentieth Century Dictionary
    • n Impost im′pōst a tax, esp. on imports:
    • n Impost im′pōst (archit.) that part of a pillar in vaults and arches on which the weight of the building is laid.
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  • Abraham Lincoln
    “The power confided in me will be used to hold, occupy and possess the property and places belonging to the government, and to collect the duties and imposts.”


Webster's Revised Unabridged Dictionary
OF. impost, F. impot, LL. impostus, fr. L. impostus, p. p. of imponere, to impose. See Impone
Chambers's Twentieth Century Dictionary
O. Fr. impost (Fr. impôt)—L. imponĕre, to lay on.


In literature:

Openings which do not cut into the vault are then frankly arched, without impost moulding of any kind.
"Byzantine Churches in Constantinople" by Alexander Van Millingen
These windows are set effectively in brick arches with marble sills, keystones and imposts.
"The Colonial Architecture of Philadelphia" by Frank Cousins
The impost duty on all agricultural products has also alarmingly increased.
"Prairie Farmer, Vol. 56: No. 4, January 26, 1884" by Various
Theodore Newville, commissioner of imposts, and Hon.
"Daughters of the Revolution and Their Times" by Charles Carleton Coffin
The arches are stilted, and at the height of the real springing an impost projects in profile.
"The Shores of the Adriatic" by F. Hamilton Jackson
It was naturally to the effect that a return to the meagre scale of imposts under Louis XI.
"History of the Rise of the Huguenots" by Henry Baird
These imposts are very various, according to the nature of the thing stamped, rising gradually from a penny to ten pounds.
"Commentaries on the Laws of England" by William Blackstone
There is an impost duty on flour of $4 a barrel.
"Porto Rico" by Arthur D. Hall
It was my intention to offer some remarks on the impost law of five per cent.
"The Writings Of Thomas Paine, Complete" by Thomas Paine
All citizens have the right to unite personally, or by their representatives, in the fixing of imposts.
"The Writings Of Thomas Paine, Volume III. 1791-1804" by Thomas Paine

In poetry:

Allora--fu un batter d'impennate,
Un cigolar sui cardini--d'imposte spalancate,
Un vagolar di lumi--sulle negre baltresche,
Un vociar di padrone,--un chiamar di fantesche.
"Fuoco" by Ferdinando Fontana
It depends on yourselves that no hypocrite rob
This land of its rights by the threats of a mob;
You ne'er will give way to the bluster and noise
Of Imposters, who CALL themselves Liberty Boys!
"Song" by Charles Dibdin
to reach a wrong opinion, 'Epileptic'.
But he noted now that: they were not old friends.
He did not know this one.
This one was a stranger, come to make amends
for all the imposters, and to make it stick.
Henry nodded, un-.
"Dream Song 45: He stared at ruin. Ruin stared straight back" by John Berryman
Now - (Eh! ... Order! Sir, I claim
Your protection! What's his name?
Is this man a member? Sir, show your authority!
An imposter, I've no doubt.
Ha, I thought so! Put him out!)
Now the motion ... Carried! by a large majority.
"The Logic Of Anti-Sosh" by C J Dennis

In news:

INTERVIEWS Garbage's Twitter Account Hacked by 'Drunk' Shirley Manson Imposter .
The Imposter ' offers a real, compelling mystery.
'The Imposter ' a decent mystery.
The Imposter , Starring Adam O'Brian, Carey Gibson, and Anna Ruben.
It doesn't take but a couple of minutes for British documentarian Bart Layton's The Imposter to make viewers feel uneasy.
Imposter posing as CSMA fundraiser Call for fundraising dollars fraudulent, officials with music school say.
' Imposter ' a convincing mystery.
'The Imposter ' ( August 22, 2012 ).
The Imposter at Maiden Alley Cinema.
"The Bourne Legacy," "The Campaign," "The Imposter ".
0 Frederic Bourdin is the subject of "The Imposter ".
' Imposter ' has a few too many reenactments but is an unsettling mystery.
'The Imposter ' is the story of a young man who successfully convinced a Texas family he was their missing son.
'The Imposter ' meshes different perspectives to tell one incredible true story.
FILM A family tragedy, an international thriller, a Southern-fried mystery, and a true story: The Imposter is all of these things.

In science:

While in contrast to the situation with partial width differences FSI are not required to produce an effect, they can act as an ‘imposter’ here, i.e. induce a T-odd correlation with T-invariant dynamics.
Heavy Flavour Physics: On Its More Than 50 Years Of History, Its Future And The Rio Manifesto