taproot是什么意思

音标: 英 [ˈtæpru:t] 美 [ˈtæpˌrut, -ˌrʊt]

n. 主根, 直根
[医] 直根

n. (botany) main root of a plant growing straight downward from the stem
n. something that provides an important central source for growth or development