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per
1[ pur; unstressed per ]
preposition
- for each; for every:
Membership costs ten dollars per year. This cloth is two dollars per yard.
- by means of; by; through:
I am sending the recipe per messenger.
I delivered the box per your instructions.
He managed to monopolize the meeting, per usual.
adverb
- Informal. each; for each one:
The charge for window-washing was five dollars per.
per-
2- a prefix meaning “through,” “thoroughly,” “utterly,” “very”: pervert; pervade; perfect.
- Chemistry. a prefix used in the names of inorganic acids and their salts that possess the maximum amount of the element specified in the base word: percarbonic (H 2 C 2 O 5 ), permanganic (HMnO 4 ), persulfuric (H 2 S 2 O 8 ), acids; potassium permanganate (KMnO 4 ); potassium persulfate (K 2 S 2 O 8 ).
per.
3abbreviation for
- percentile.
- period.
- person.
Per.
4abbreviation for
- Persia.
- Persian.
per
1/ pə; pɜː /
determiner
- for every
three pence per pound
preposition
- (esp in some Latin phrases) by; through
- as peras per according to
as per specifications
- as per usual informal.as per usual as usual
per-
2prefix
- through
pervade
- throughout
perennial
- away, beyond
perfidy
- completely, throughly
perplex
- (intensifier)
perfervid
- indicating that a chemical compound contains a high proportion of a specified element
perchloride
peroxide
- indicating that a chemical element is in a higher than usual state of oxidation
perchlorate
permanganate
- See peroxy-not in technical usage a variant of peroxy-
persulphuric acid
PER
3abbreviation for
- Professional Employment Register
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Usage Note
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Word History and Origins
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Word History and Origins
Origin of per1
Origin of per2
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Example Sentences
Added to drinking water at concentrations of around one part per million, fluoride ions stick to dental plaque.
During an emergency that ratio could be allowed to drop to 8.5 people per orbit.
Well over a thousand holes in, I average less than four strokes per hole.
At least one child in CAR has been killed or gravely injured per day, and 10,000 have been recruited into militant groups.
Bitcoin began 2013 with a roaring price of $770 per unit, and businesses right and left were converting to the ethereal product.
I doubt that thirty persons per day are carried into or brought out of it by all public conveyances whatever.
The Act permits member banks to accept an amount of bills not exceeding 50 per cent.
At this period it brought enormous prices, the finest selling at from fifteen to eighteen shillings per pound.
In 1205 wheat was worth 12 pence per bushel, which was cheap, as there had been some years of famine previous thereto.
We did not talk much about the past at dinner, except—ah me, how bitterly we regretted our 10 per cent.
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