(noun) A manualcomputingdevice consisting of a frameholdingparallelrods strung with movablecounters.
(noun)Architecture A slabon the top of the capital of a column.
(noun) a counting device that consists of a frame holding rods on which a specific number of beads are free to move. Each rod designates a given denomination, such as units, tens, hundreds, etc, in the decimal system, and each bead represents a digit or a specific number of digits
(noun) the flat upper part of the capital of a column
Use "abacus" in a sentence
"More specifically, Buffett's Berkshire Hathaway for its five big bills got an issue of perpetual preferred Goldman shares with a neat 10% annual dividend, which according to our abacus translates into $5 million a year."
"The columns of these pillared porches have sixteen flutings, a plain abacus, and no plinth."
"It now had fence slats and feed bags laid across, and held all types of useful things—shuttlecocks, disposable cameras, Play-Doh molds, and so on—things Joey found discarded, including a functional abacus, which is really quite rare."