raphides

/raf-i-deez/US // ˈræf ɪˌdiz //

蚜虫,蚜虫病,蚜茧,雨水

Definitions

n.名词(复数) plural noun

1
singular ra·phide [rey-fahyd], /ˈreɪ faɪd/, ra·phis [rey-fis]. /ˈreɪ fɪs/. Botany.
- : acicular crystals, usually composed of calcium oxalate, that occur in bundles in the cells of many plants.

Under the microscope the slide was found to be covered with a mass of raphides.
Crystals, called raphides, in the wood cells, take the edges off tools used in working locust lumber.
Some of these cells contain bundles of raphides (Fig. 2), one of which bundles is shown crushed in Fig.
The fuchsia and tradescantia contained bundles of raphides of the same form and equally as fine as those of the acrid plants.
The filtered ether was clear, entirely free from raphides, and had also lost every trace of its acridity.