Adjective

(-)

(sciences) Having a feather-like shape

* {{quote-journal, 2008, date=November 26, Adrian Marchetti et al., Ferritin is used for iron storage in bloom-forming marine pennate diatoms, Nature, url=, doi=10.1038/nature07539, volume=457, issue=7228, pages=

, passage=Addition of iron to surface waters in these areas induces massive phytoplankton blooms dominated primarily by pennate diatoms. }}