In analytical and organic chemistry, elution is the process of extracting one material from another by washing with a solvent; as in washing of loaded ion-exchange resins to remove captured ions. ... Predicting and controlling the order of elution is a key aspect of column chromatographic methods.

What does the term elution mean?

: to wash out or extract specifically : to remove (adsorbed material) from an adsorbent by means of a solvent. Other Words from elute. elution \ -​ˈlü-​shən \ noun.

What does eluent mean?

ĕlyo͝o-ənt. A substance used as a solvent in separating materials in elution. noun. (analytical chemistry) In chromatography, a solvent used in order to effect separation by elution.