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| 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 screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
nutrient nu·tri·ent (n&oomacr;'trē-ənt, ny&oomacr;'-)
n.
A source of nourishment, especially an ingredient in a food.
nutrient (n 'trē-ənt) Pronunciation Key
A substance that provides nourishment for growth or metabolism. Plants absorb nutrients mainly from the soil in the form of minerals and other inorganic compounds, and animals obtain nutrients from ingested foods. |