Relating to or involving the sense of taste; gustatory.
From Latin 'gustatorius' (relating to tasting) with the English suffix '-al,' formed from 'gustare' (to taste). An alternative form of 'gustatory,' more commonly used in older texts.
In Latin-based English, you get competing forms—'gustatory' and 'gustatorial' both mean the same thing, but 'gustatorial' is rarer because English speakers preferred the simpler version, just like we say 'necessary' not 'necessitational.'
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