food pyramid
noun Ecology.
successive levels of predation in a food chain represented schematically as a pyramid because upper levels normally consist of decreasing numbers of larger predators.
a diagram that represents a healthy diet by placing food groups in a pyramid according to the number of servings from each group to be eaten every day.
Words nearby food pyramid
food mile, food mill, food poisoning, food pollen, food processor, food pyramid, food science, food security, food service, food stamp, food stylist
Origin of food pyramid
First recorded in 1945–50
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Science definitions for food pyramid
food pyramid
A graphic representation of the structure of a food chain, depicted as a pyramid having a broad base formed by producers and tapering to a point formed by end consumers. Between successive trophic levels, total biomass decreases as energy is lost from the system. See more at trophic level.
A pyramid-shaped diagram representing a set of dietary guidelines for humans, typically based on a recommended number of servings from each of several food groups. Foods along the broadest row, at the bottom, are considered basic to human nutrition and have the highest recommended number of servings. Foods in the narrowest part, at the top, are considered to be nonessential and have the fewest number of recommended servings. In the middle row or rows are foods whose recommended servings fall between those two groups.
The American Heritage® Science Dictionary
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