àbac

From Latin abacus, abax; from Ancient Greek ἄβαξ (ábax, “board or slab”).

• (Balearic, Central) IPA^(key): /ˈa.bək/
• (Valencian) IPA^(key): /ˈa.bak/

àbac m (plural àbacs)

1. An abacus. (calculating frame with beads constrained to rows by grooves or wires)
2. (archaic) In the Middle Ages, a mathematics textbook.
3. A mathematical table.
4. (billiards) score string
5. An abacus. (sand tray used for drawing or calculating)
6. (architecture) An abacus. (uppermost prismatic member of a column)
7. (games) A checkerboard or a chessboard.
8. (furniture, archaic) An abacus. (compartmented tray or table used to store valuables)
9. (furniture, modern) More generally, now used for any table.
10. A sluice, especially one used for mining.
11. (construction) An abacus. (plates of stone or metal used to cover a surface)

• (any piece of furniture used as a table): taula, tauler
• (sluice): obi

• àbac màgic
• àbac neperià

• “àbac” in Diccionari de la llengua catalana, segona edició, Institut d’Estudis Catalans.