biostrome

美 　英

• n.生物層
• 網(wǎng)絡(luò)層狀生物礁；生物礁層；鈣質(zhì)微生物層

詞形變化

復(fù)數(shù)：biostromes  

英漢解釋

n.

1. 生物層

英英解釋

n.	1. a thin layer in a rock formation that consists of organic material such as fossils deposited at the site where they lived