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Definition of Trieterical
1. a. Kept or occurring once in three years; triennial.
Definition of Trieterical
1. Adjective. (rare) Occurring once in three years; triennial. ¹
¹ Source: wiktionary.com
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1. a. Kept or occurring once in three years; triennial.
1. Adjective. (rare) Occurring once in three years; triennial. ¹
¹ Source: wiktionary.com