Saturate v. t. : To cause to become completely penetrated, impregnated, or soaked; to fill fully; to sate.

Saturate v. t. : To satisfy the affinity of; to cause to become inert by chemical combination with all that it can hold; as, to saturate phosphorus with chlorine.

Saturate p. a. : Filled to repletion; saturated; soaked.

Example:
How much water to Saturate 10L of soil?

Taxonomy
Merriam-Webster Online Dictionary, Dictionary, webster, Word Games, Webster Online Dictionary with audio pronunciations, thesaurus, transitive verb, glossary, english, language, ESL, Search, Inflected, Etymology, Latin, past participle, saturare, well-fed.

Defination from the web:
saturate from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. ... 2 : to treat, furnish, or charge with something to the point where no more can be absorbed, dissolved, or retained <water saturated with salt> ...