royal jelly
royal jelly
royal jelly
roy′al jel′ly
n.
Noun | 1. | royal jelly - a secretion of the pharyngeal glands of bees that is fed to very young larvae and to bees destined to be queens |
单词 | royal jelly | |||
释义 | royal jellyroyal jellyroyal jellyroy′al jel′lyn.
royal jellyroyal jellyRoyal Jellya secretion of the mandibular and pharyngeal glands discharged by worker nurse-bees in special cells of the honeycomb (queen cells), in which the queen bees develop. The bees deposit 0.2-0.5 grams of royal jelly in one queen cell. In order to secrete royal jelly, the nurse-bees need, besides honey, pollen or beebread. In dry form royal jelly contains 40-58 percent protein, 5-18 percent fat, about 26 percent sugar, and a number of mineral salts, as well as vitamins and other biologically active substances. The composition of royal jelly depends mainly on the pollen the bees are feeding on. Apilac, a preparation used in medicine and perfume, is made from royal jelly. royal jelly[′rōi·əl ′jel·ē]royal jellyroyal jellyroyal jellyA salivary secretion of worker bees, which they feed to the bee chosen to be the queen of the hive, causing the designate to grow larger, live longer and reproduce. In humans, royal jelly is said to be useful for asthma, chronic fatigue, diseases of childhood, Epstein-Barr infection, insomnia, mental disorders and other conditions; it is also said to stimulate the immune system, retard ageing and increase mental and physical agility.royal jellyA foodstuff secreted by worker bees for the nutrition of larvae and queen bees and sold at high prices. There is no reason to suppose that royal jelly has any medicinal value.royal jellyorqueen substancea substance produced by the pharyngeal glands in the early adult life of the worker bee that is used for feeding the young brood (for up to four days) and the larvae of queen bees for longer periods to ensure their development into queens. It contains 40% dry matter in the form of lipoproteins, neutral glycerides, free-fatty acids, sugar, amino acids and all the B vitamins. It also has a high content of ACETYLCHOLINE.royal jelly
Words related to royal jelly
|
|||
随便看 |
|
英语词典包含2567994条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。