Definition of P

1. Noun. A multivalent nonmetallic element of the nitrogen family that occurs commonly in inorganic phosphate rocks and as organic phosphates in all living cells; is highly reactive and occurs in several allotropic forms.

Exact synonyms: Atomic Number 15, Phosphorus
Generic synonyms: Chemical Element, Element
Substance meronyms: Apatite
Derivative terms: Phosphoric, Phosphorous

2. Noun. The 16th letter of the Roman alphabet.

Definition of P

1. Letter. (Latn-def en letter 16 pee) ¹

2. Number. (Latn-def en ordinal 16 pee) ¹

3. Noun. park ¹

4. Noun. phone ¹

5. Noun. pager ¹

6. Noun. passenger ¹

7. Noun. (chess) Pawn. ¹

8. Noun. (context: slang chiefly US) A "pure" form of an illegal drug, especially heroin. ¹

9. Proper noun. (computing theory) The set of all problems that are solvable in polynomial time by a deterministic Turing machine ¹

10. Letter. (Latn-def en letter 16 pee) ¹

11. Number. (Latn-def en ordinal 16 pee) ¹

12. Abbreviation. post, meaning after ¹

13. Abbreviation. ''Music'' symbol for piano (play softly) ¹

14. Abbreviation. page (plural pp) ¹

15. Abbreviation. (U.K.) penny; pence. ¹

16. Abbreviation. (Internet) pretty (qualifier as an intensifier) ¹

¹ Source: wiktionary.com

Medical Definition of P

1. 1. Symbol for peta-; phosphorus; pressure or partial pressure; proline; product; power; frequently with subscripts indicating location and/or chemical species. 2. Followed by a subscript, 1) refers to the plasma concentration of the substance indicated by the subscript; 2) permeability constant. 3. A blood group designation. 4. Symbol for probability; when followed by the sign for "less than" (<) this indicates that a test statistic, e.g., a chi-square test gives a result unlikely to occur by chance. 5. Pupil; optic papilla. 6. In polynucleotide symbolism, phosphoric ester or phosphate. 7. Symbol for pico-; momentum (in italics). 8. In cytogenetics, symbol for the short arm of a chromosome. Origin: fr. Fr. Petit, small (05 Mar 2000)

P Pictures

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Lexicographical Neighbors of P

ozonoscopes
ozonoscopic
ozonosphere
ozonospheres
ozonospheric
ozonous
ozostomia
ozs
ozumo
ozæna
ozænic
ozænæ
oöphores
oöstegite
p'd off
p'ee
p'raps
p'tcha
p-adic absolute value
p-adic norm
p-adic number
p-adic ordinal
p-adic ultrametric
p-aminoazobenzene
p-aminobenzoic acid
p-aminohippurate clearance

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