| saccade | (noun) a rapid, jerky movement of the eyes between positions of rest | - |
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| (noun) an abrupt spasmodic movement | Synonyms: jerk, jerking, jolt |
| saccharase | (noun) an enzyme that catalyzes the hydrolysis of sucrose into glucose and fructose | Synonyms: invertase, sucrase |
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| saccharide | (noun) an essential structural component of living cells and source of energy for animals; includes simple sugars with small molecules as well as macromolecular substances; are classified according to the number of monosaccharide groups they contain | Synonyms: carbohydrate, sugar |
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| saccharin | (noun) a crystalline substance 500 times sweeter than sugar; used as a calorie-free sweetener | - |
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| saccharinity | (noun) the excessive sweetness of saccharin | - |
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| saccharose | (noun) a complex carbohydrate found in many plants and used as a sweetening agent | Synonyms: sucrose |
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| saccule | (noun) a small sac or pouch (especially the smaller chamber of the membranous labyrinth) | Synonyms: sacculus |
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| sacculus | (noun) a small sac or pouch (especially the smaller chamber of the membranous labyrinth) | Synonyms: saccule |
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