P n.
the sixteenth letter of the English alphabet, is a nonvocal consonant whose form and value come from the Latin, into which language the letter was brought, through the ancient Greek, from the Phonician, its probable origin being Egyptian. Etymologically P is most closely related to b, f, and v; as hobble, hopple; fathe…
PARALLAX n.
other conventional point, as the earth's center or the sun. Annual parallax, the greatest value of the heliocentric parallax, or the greatest annual apparent change of place of a body as seen from the earth and sun; as, the annual parallax of a fixed star. -- Binocular parallax, the apparent difference in position of…