abacus

noun

aba·cus ˈa-bə-kəs How to pronounce abacus (audio)

ə-ˈba-

plural abaci ˈa-bə-ˌsī How to pronounce abacus (audio)

-ˌkē;

ə-ˈba-ˌkī

or abacuses

: an instrument for performing calculations by sliding counters along rods or in grooves

: a slab that forms the uppermost member or division of the capital of a column

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Probably of Babylonian origin, an abacus is a calculating instrument that uses beads that slide along a series of wires or rods set in a frame to represent the decimal places. It is the ancestor of the modern digital calculator. Used by merchants in the Middle Ages throughout Europe and the Arabic world, it was gradually replaced by arithmetic based on Hindu-Arabic numerals. Though rarely used in Europe past the 18th century, it is still used in the Middle East, China, and Japan.

单词	abacus
释义	abacus noun aba·cus ˈa-bə-kəs ə-ˈba- plural abaci ˈa-bə-ˌsī -ˌkē; ə-ˈba-ˌkī or abacuses 1 : an instrument for performing calculations by sliding counters along rods or in grooves 2 : a slab that forms the uppermost member or division of the capital of a column Illustration of abacus abacus 1 Did you know? Probably of Babylonian origin, an abacus is a calculating instrument that uses beads that slide along a series of wires or rods set in a frame to represent the decimal places. It is the ancestor of the modern digital calculator. Used by merchants in the Middle Ages throughout Europe and the Arabic world, it was gradually replaced by arithmetic based on Hindu-Arabic numerals. Though rarely used in Europe past the 18th century, it is still used in the Middle East, China, and Japan. Word History Etymology Latin, from Greek abak-, abax, literally, slab First Known Use 14th century, in the meaning defined at sense 1 Kids Definition abacus noun aba·cus ˈa-bə-kəs plural abaci ˈa-bə-ˌsī or abacuses : an instrument for doing arithmetic by sliding counters along rods or in grooves
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abacus

noun

Illustration of abacus

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Word History

Kids Definition

noun