Definition of Per-

1. Prefix. (context: non-productive) In verbs: denoting the sense "through", as in '''perforate'''. ¹



2. Prefix. (context: non-productive) In verbs: denoting the sense "thoroughly", as in '''perfect'''. ¹

3. Prefix. (context: non-productive) In verbs: denoting the sense "to destruction", as in '''pervert'''. ¹

4. Prefix. (context: non-productive) In adjectives and adverbs: denoting the sense "extremely", as in '''perfervid'''. ¹

5. Prefix. (chemistry) Forming nouns and adjectives denoting the maximum proportion of one element in a compound, as in '''peroxide'''. ¹

6. Prefix. (chemistry) Added to the name of an element in a polyatomic ion denote the number of that element (usually four). ¹

7. Prefix. (context: non-productive) Denoting the sense "by" or "per", as in '''perchance''' or '''perhaps'''. ¹

¹ Source: wiktionary.com

Medical Definition of Per-

1. 1. A prefix used to signify through, throughout, by, for, or as an intensive as perhaps, by hap or chance; perennial, that lasts throughout the year; perforce, through or by force; perfoliate, perforate; perspicuous, evident throughout or very evident; perplex, literally, to entangle very much. 2. Originally, denoting that the element to the name of which it is prefixed in the respective compounds exercised its highest valence; now, only that the element has a higher valence than in other similar compounds; thus, barium peroxide is the highest oxide of barium; while nitrogen and manganese peroxides, so-called, are not the highest oxides of those elements. (29 Oct 1998)

Per- Pictures

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Lexicographical Neighbors of Per-

peptonize
peptonized
peptonizes
peptonizing
peptonoid
peptonoids
peptonuria
peptonurias
peptoprime
peptoprimes
peptostreptococcus
peptotoxine
peptotoxines
pequots
per
per- (current term)
per accidens
per alia
per annum
per anum
per capita
per capita income
per capita rate
per cent
per cent.
per centum
per contiguum
per continuum
per contra
per curiam

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