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acrogen

noun
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ac·​ro·​gen | \ ˈa-krə-jən \
plural -s

Definition of acrogen

: a plant of the higher cryptogams predominant in the Carboniferous era including ferns, fern allies, mosses, and liverworts and distinguished by growth from a special cell or growing point — compare thallogen, thallophyte

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First Known Use of acrogen

1834, in the meaning defined above

History and Etymology for acrogen

acr- + -gen; from the growing point's being at the tip of the stem

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The first known use of acrogen was in 1834

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Cite this Entry

“Acrogen.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/acrogen. Accessed 5 December 2019.

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