arithmetic series

noun

a sequence in which each term is obtained by the addition of a constant number to the preceding term, as 1, 4, 7, 10, 13, and 6, 1, −4, −9, −14.

Also called arithmetic series.

Origin:
1585–95

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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins

World English Dictionary

arithmetic progression

—n
	Compare geometric progression a sequence of numbers or quantities, each term of which differs from the succeeding term by a constant amount, such as 3,6,9,12

Collins English Dictionary - Complete & Unabridged 10th Edition
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00:10

Arithmetic series is always a great word to know.

So is zedonk. Does it mean:

a scrap or morsel of food left at a meal.

the offspring of a zebra and a donkey.

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American Heritage

Science Dictionary

arithmetic progression

(ār'ĭth-mět'ĭk) Pronunciation Key
A sequence of numbers such as 1, 3, 5, 7, 9 ..., in which each term after the first is formed by adding a constant (in this case, 2) to the preceding number. Compare geometric progression.

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"The Young Man's Best Companion, The Farrier's Sure Guide, The Veterinary Surgeon, Paradise Lost, The Pilgrim's Progress, Robinson Crusoe, Ash's Dictionary, and Walkingame's Arithmetic, constituted his library; and though a limited series, it was one from which he had acquired more sound information by diligent perusal than many a man of opportunities had done from a furlong of laden shelves."

-Thomas Hardy

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