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abu ali al-husain ibn abdallah ibn sina
wonderful
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punishment
across the board
copier
eyebrows
hither
1530s
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abacus
abacus
/ˈæbəkəs/
noun
A calculator that performs arithmetic functions by manually sliding counters on rods or in grooves
(
abacus
)
a calculator that performs arithmetic functions by manually sliding counters on rods or in grooves
As a child, he learned arithmetic on an abacus before using a calculator.
As a child, he learned arithmetic on an abacus before using a calculator.
A tablet placed horizontally on top of the capital of a column as an aid in supporting the architrave
(
abacus
)
a tablet placed horizontally on top of the capital of a column as an aid in supporting the architrave
Historically, architects used an abacus to support intricate structures atop columns.
Historically, architects used an abacus to support intricate structures atop columns.
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