Definition of ramentum
plural ramenta
\-tə\
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
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