| 单词 | preservative |
| 释义 | preservative (once / 5866 pages) adjn Anything that's preservative keeps things alive, healthy, or fresh. Some cooks swear by the preservative powers of lemon juice, which can keep fruit tasting fresh and save avocado slices from turning brown. Use preservative as an adjective — or a noun, for a chemical or other substance that keeps something from dying or breaking down. Food preservatives are sometimes added to make edible things last longer, and to items like medication and cosmetics, so they don't decay before you've finished using them. Preservative followed the verb preserve, which in the fourteenth century meant "to keep something safe." WORD FAMILYpreservative: preservatives+/preservation: preservationist, preservations, self-preservation/preservationist: preservationists/preserve: preservable, preservation, preservative, preserved, preserver, preserves, preserving/preserver: preservers USAGE EXAMPLESFat Grape, which makes only red wines and does not add sulfites, a preservative, offers free tastings; fatgrapewinery.com. Seattle Times(Nov 24, 2016) Orange blossom water is added for flavor and a splash of vodka or cognac as a preservative. Seattle Times(Nov 22, 2016) Most controversially, natural winemakers use little or no sulfur, a natural preservative that prevents the wine from going funky in the bottle. Washington Post(Nov 05, 2016) 1adj tending or having the power to preserve timbers should be treated with a preservative substance Syn protective intended or adapted to afford protection of some kind 2n a chemical compound that is added to protect against decay or decomposition Hypo|Hyper spice aromatic substances of vegetable origin used as a preservative stacte(Old Testament) one of several sweet-smelling spices used in incense chemical compound, compound (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight |
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