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preservative 中文解釋 wordnet sense Collocation Usage Collins Definition
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preservatives, plural;
  1. Acting to preserve something
    • - the preservative effects of freezing
  1. A substance used to preserve foodstuffs, wood, or other materials against decay

  1. a chemical compound that is added to protect against decay or decomposition
  2. tending or having the power to preserve; "timbers should be treated with a preservative substance"
  3. A preservative is a naturally occurring or synthetic substance that is added to products such as foods, pharmaceuticals, paints, biological samples, wood, etc. to prevent decomposition by microbial growth or by undesirable chemical changes.
  4. any agent, natural or artificial that acts to preserve, especially when added to food; tending to preserve
  5. (preservatives) substances that prevent a vaccine from becoming contaminated.
  6. Preservatives are used to prevent food from spoiling and are found in many foods on the market today. Sodium benzoate and sulphur dioxide are examples of preservatives.
  7. (Preservatives) Van's waffles contain no preservatives. Research suggests that some synthetically produced preservatives may cause tumors or adversely impact the nervous system, the immune system, reproductive health and even behavior.
  8. (Preservatives) Preserving personal care products is necessary in order to prevent contamination from a wide spectrum of bacteria, yeasts and molds. ...
  9. (Preservatives) A type of food additive that may have adverse health effects.
  10. (Preservatives) A wide variety of additives are used for preventing or delaying spoilage and are closely restricted in respect to the foods they can be used with and the levels at which they can be used. ...
  11. (Preservatives) Additives used in beverages to control or prevent microbial growth or flavor deterioration.  Includes sodium and potassium benzoate and potassium sorbate.
  12. (Preservatives) Chemical or bactericidal activity which destroys or deactivates micro-organisms and enhances the colloidal stability of latex.  Ammonia is the most popular preservative.  Certain other chemicals used along with lower concentration of ammonia are called secondary preservatives.
  13. (Preservatives) Floor finishes are susceptible to bacterial contamination. This is why finishes contain small amounts of antimicrobial agents to prevent microbial deterioration. These preservatives protect the unopened container, but do not substantially protect finish after it has been used. ...
  14. (Preservatives) McFarland Cascade treats utility poles with Pentachlorophenol, Creosote, or Chromated Copper Arsenate (CCA). (See Details)
  15. (Preservatives) are added to food so that is does not spoil. They also may change the color and taste of the food
  16. (Preservatives) are static agents used to inhibit the growth of microorganisms, most often in foods. If eaten, they should be nontoxic. Examples: calcium propionate, sodium benzoate, formaldehyde, nitrate, and sulfur dioxide.
  17. (preservatives) Substances used in cosmetics to prevent bacterial and microbial contamination of products. While there is definitely a risk of irritation from these types of ingredients, the risk to skin and eyes from using a contaminated product is considered by many scientists to be even greater.
  18. (preservatives) which are often proves quite unhealthy for health. In comparison to canned food, fresh seasonal fruits are better option. For example, if we have to choose a low-calorie fruit instead of grapefruit juice, fresh water melon is a better choice. ...
  19. Preservatives keep foods fresh and inhibit the growth of bacteria, yeasts, or molds. Look for products with natural preservatives, like rosemary, vitamin E, vitamin C, citrus, honey and essential oils, which replace synthetic ingredients to maintain food’s freshness. ...
  20. Synthetic preservatives used in cosmetics—such as parabens, imidazolidinyl urea, formaldehyde, phenoxyethanol, and quaternium 15—are used to extend the shelf life of cosmetics as well as minimize microbial growth.  However, they can cause allergies and skin irritation. ...
  21. Any substance that, for a reasonable length of time, will prevent the action of wood-destroying fungi, borers of various kinds, and similar destructive agents when the wood has been properly coated or impregnated with it.
  22. A chemical compound applied as a liquid, which is used to help prevent rot and/or insect damage to wood. Sometimes, but not necessarily a stain.
  23. A substance used to maintain freshness and prevent or retard decay, rotting, and/or spoilage.
  24. means "condom" in many European languages
  25. A substance that protects against the natural effects of aging, such as decay, discoloration, oxidation, and bacterial degradation. In soap products, preservatives are used to forestall and slow down the natural tendency to develop rancidity upon aging. ...