any of several American grape ferns, especially Botrychium virginianium, having clusters of sporangia resembling the rattles of a rattlesnake.
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Question 1 of 9
You may have read the word "simmer" in a recipe or two, but what does it really mean?
Origin of rattlesnake fern
An Americanism dating back to 1805–15
Words nearby rattlesnake fern
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020