pennate
/ˈpɛnət
/adjective Botany
(Of a diatom) bilaterally symmetrical. Compare with centric.The major source of the spring diatom pulse was Skeletonema potamos and a variety of centric and pennate diatoms....
- Diatoms are photosynthetic protists, which are classified into centric and pennate diatoms, according to whether they have a radial or bilateral symmetry.
- Both articulated and broken pennate diatoms, up to 12 m long and 4 m wide, are scattered throughout the stromatolitic sinters.
Origin
Mid 19th century: from Latin pennatus 'feathered, winged', from penna 'feather'.
- free-free
- Free French
- freegan
- free gift
- free-going
- free gold
- free good
- free grace
- free grant
- free grass
- free, gratis, and for nothing
- free-grown
- freehand
- free-handed
- free-handedly
- free-handedness
- free handout
- free-hearted
- free hit
- not to speak of
- Nottoway
- not to worry
- not trust someone as far as one can throw them
- Notts.
- not turn a hair