tripinnate

(trī pināt)

adjective

Bot. bipinnate with each division pinnate, as some fern leaves

Related Forms:

See tripinnate in American Heritage Dictionary 4

adjective
Divided into pinnae that are subdivided into smaller, further subdivided leaflets or lobes, as in many ferns.

Related Forms:

  • tri·pinˈnateˌly adverb
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