| 释义 |
ra·men·tum
\rəˈmentəm\ noun
(plural ramen·ta \-tə\)
Etymology: Latin, from radere to scratch, scrape + -mentum -ment — more at rat
1. : something scraped off : a minute particle : shaving
2. [New Latin, from Latin]
a. : any of the thin brownish often fringed or laciniate scales that are borne upon the leaves or young shoots of many ferns and that consist of a single layer of cells
b. : the armor of a fossil cycad stump that suggests in appearance the ramenta of existing ferns |