abacus /abˈə-kəs/

1. A counting frame, consisting of horizontal rods along which movable beads can be slid
2. A level tablet on the capital of a column, supporting the entablature (architecture)

• tritest
• tritheism
• tritheisms
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• tritheists
• trithionate
• trithionates
• trithionic
• trithionic acid
• tritiate
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• triticale
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• triticeous
• triticism