to increase the proportion of a valuable mineral or isotope in (a substance or material): The fuel was enriched with uranium 235 for the nuclear reactor.
7.
Nutrition.
a.
to restore to (a food) a nutrient that has been lost during an early stage of processing: to enrich flour with thiamine, iron, niacin, and riboflavin.
b.
to add vitamins and minerals to (food) to enhance its nutritive value.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
a scrap or morsel of food left at a meal.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
late 14c., "to make wealthy," from O.Fr. enrichir, from en- "make, put in" + riche "rich" (see rich). Scientific sense of "to increase the abundance of a particular isotope in some material" is first attested 1945. Related: Enriched; enriching.