English Dictionary

silver grain

名詞

不可算名詞

(botany) The lines or narrow plates of cellular tissue which pass from the pith to the bark of an exogenous stem; the medullary rays. In the wood of the oak they are much larger than in that of the beech, maple, pine, cherry, etc.

日本語の意味

（植物学）中心部（心材）から外側（樹皮）へ向かって伸びる細胞組織の線状または板状の部分、すなわち髄射線。 / 樫の木などでは特に発達しており、ブナ、カエデ、マツ、サクラなどの木に比べて大きい。

The botanist pointed out the silver grain running from the pith to the bark as a distinguishing feature of the specimen.

植物学者は、標本の識別点として、髄から樹皮に向かって走る髄線を指摘した。

意味（1）

(botany) The lines or narrow plates of cellular tissue which pass from the pith to the bark of an exogenous stem; the medullary rays. In the wood of the oak they are much larger than in that of the beech, maple, pine, cherry, etc.