an expert in arithmetic.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use arithmetician in a sentence
The simplest arithmetician could see that the nought "went into" the numerator an infinite number of times.Dodo's Daughter | E. F. Benson
He contrived, during the course of autumn and winter, to make himself a tolerable arithmetician.The Parent's Assistant | Maria Edgeworth
Basile was an exact arithmetician, could write an excellent hand, and was a ready draughtsman and surveyor.Murad the Unlucky and Other Tales | Maria Edgeworth
You see he himself is an eccentric accountant, a Pindaric book-keeper, an arithmetician in the clouds.
It will soon be impossible to go to a dance without being accompanied by a professional arithmetician.