An archaic or rare term for a person who practices agriculture; a farmer or agriculturist.
From agriculture with the agent suffix -er (one who practices). This is an older form that competed with agriculturist and agriculturalist but largely disappeared from standard usage.
Agriculturer is almost a dead word, crowded out by the more popular agriculturist and agriculturalist—it's a reminder that English constantly creates and abandons new words as it searches for the best way to express an idea.
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