Science / Marine Biology / Photosynthetic Rate
Photosynthetic Rate: The rate of conversion of dissolved carbon dioxide and bicarbonate ion to photosynthetic product
Phyto-Chemical Concentrates: Chemical constituents of plants part of its defense system, others than proteins, fats, carbohydrates, vitamins and minerals used in human nutrition, enhance overall health, act as detoxifyi . . . View Full Definition
Photosynthetic Quotient: In photosynthesis, the moles of oxygen produced, divided by the moles of carbon dioxide assimilated
Phosphoglycerate (PGA): A three-carbon molecule formed when carbon dioxide is added to ribulose biphosphate (RuBP) during the dark reaction of photosynthesis (Calvin, or Calvin-Benson Cycle). PGA is converted to PG . . . View Full Definition
Pherecratean: A classical greek and latin metrical pattern consisting of an iamb or a trochee, a dactyl, and a trochee or a spondee.
Piece Rate: A per-piece rate system that pays employees based on the number of pieces produced.
Plowback Rate: Related: Retention rate
Potassium Citrate: Chemical used in blue and green toners.
Portfolio Turnover Rate: For an investment company, an annualized rate found by dividing the lesser of purchases and sales by the average of portfolio assets.
Portfolio Internal Rate Of Return: The rate of return computed by first determining the cash flows for all the bonds in the portfolio and then finding the interest rate that will make the present value of the cash flows equal . . . View Full Definition