seminal
/ˈsemɪnl; `sɛmənl/ adj
1 [usu attrib 通常作定语]
of seed or semen 种子的; 精液的
the seminal fluid 精液 * a seminal duct 精管.
2 (fig often approv 比喻, 常作褒义) strongly influencing later developments 对以後发展有巨大影响的
a seminal idea, essay, speech 有巨大影响的思想、 文章、 讲话
Her theories were seminal for educational reform. 她的理论对教育改革影响很大. seminal => semen.