Word Study
acrogen
CIDE DICTIONARY
acrogen, n. [Gr. 'a`kros extreme, high + -gen.].
A plant of the highest class of cryptogams, including the ferns, etc. See Cryptogamia. [1913 Webster]
OXFORD DICTIONARY
acrogen, n. Bot. any non-flowering plant having a perennial stem with the growing point at its apex, e.g. a fern or moss.
Derivative
acrogenous adj.
Etymology
Gk akron tip + -GEN
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