| 词汇 | drupe |
| 释义 | drupe noun[ C ] biology specializeduk /druːp/ us /druːp/ a type of fruit that has a thin skin and a large stone(= a single seed with a hard cover) in the middle: 核果（皮薄，中间有大核的水果） The apricot is actually what is called a drupe or “stone fruit”.杏其实就是所谓的核果或 "石核果"。 Part II of the work deals with drupes (apricots, cherries, nectarines, peaches, plums). Pistachios are not true botanical nuts but drupes and what we call the nut is really the seed. Olive trees produce fruit which are drupes (fruits with a single seed). The olive, a drupe (the word comes from the Greek word for olive), can be picked at various stages of ripeness, turning green to black. Fruits & seeds & their parts ackee aronia barberry bergamot bur caryopsis chaff cone flesh peel pine nut pip pith pithy radicle radicular seed coat seed pod seedless sesame seed Examples of drupedrupe Eggs were placed in contact with the proximal end of each drupe close to the drupe-receptacle junction. Fruits are spherical drupe-like berries with one large (18-23 mm diameter) spherical seed. In one-, two-, three, four-, five- and six-seeded drupes, 74, 66, 65, 72, 56 and 0% of the seeds, respectively, germinated. Fruits are single-seeded drupes; seeds are c. 18 mm long, weigh nearly 1 g and have a volume of 0.8 cm3. The dispersal unit is a multi-seeded drupe with a soft mesocarp and thin exocarp. However, even if drupes imbibe water, this does not prove that the seeds themselves are imbibed. The dispersal unit is a drupe; thus, the exocarp and fleshy mesocarp were removed, leaving the endocarp around the true seed. These seeds represented a wide range of plant families and came from a variety of fruit types, including drupes, berries, syconia and arillate fruits. Also, within a single drupe, as already discussed, the appearance of a seedling does not mean that the other seeds will germinate immediately. Also, during the germination studies seven drupes were found in which one drupelet had split open but the radicle had not yet emerged. When one seed in a drupe germinated, the drupe frequently broke into two (or more) parts. Three replications of 30 drupes each were used for each treatment and control. When a drupe produced the first seedling, the drupe was moved to a new dish labelled 'one seedling'. No attempt was made to record the dates when individual drupes produced a seedling. Berries and drupes were the most common fruit types (83%) with a soft and juicy pulp (62%). These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
| 随便看 |
|
反思网英语在线翻译词典收录了377474条英语词汇在线翻译词条，基本涵盖了全部常用英语词汇的中英文双语翻译及用法，是英语学习的有利工具。