Synonym: file, grind, scrape, smooth. Similar words: sandwich, peasant, sanction, chitosan. Meaning: [sænd] 
n. 1. a loose material consisting of grains of rock or coral 2. French writer known for works concerning women's rights and independence (1804-1876) 3. fortitude and determination. v. rub with sandpaper.
n. 1. a loose material consisting of grains of rock or coral 2. French writer known for works concerning women's rights and independence (1804-1876) 3. fortitude and determination. v. rub with sandpaper. 
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181. The companies also undertake to ensure the protection of four marine species: kelp, abalone, sand dollars and sea urchins.