Pronunciation: (pē),[key] —n., —pl.P's or Ps, p's or ps. 1. the sixteenth letter of the English alphabet, a consonant.
2. any spoken sound represented by the letter P or p, as in pet, supper, top, etc.
3. something having the shape of a P. 4. a written or printed representation of the letter P or p. 5. a device, as a printer's type, for reproducing the letter P or p.
1. Educ.(as a rating of student performance) passing.
—Symbol. 1. the 16th in order or in a series, or, when I is omitted, the 15th.
2. (sometimes l.c.) the medieval Roman numeral for 400. Cf. Roman numerals. 3. Genetics.parental.
5. Physics. a. power.
d. See space inversion. e. poise2.
1. penny; pence.
Mil. (in designations of fighter aircraft) pursuit: P-38.
Chem. para-1 (def. 2).