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'.
- photosynthetically
- photosynthetic quotient
- photosynthetic ratio
- photosystem
- phototachometer
- phototachymeter
- phototachymetric
- phototactic
- phototaxis
- phototelegram
- phototelegraph
- phototelegraphic
- phototelegraphy
- phototelephony
- photo-telescope
- phototheodolite
- phototherapeutic
- phototherapeutic keratectomy
- phototherapeutics
- phototherapy
- photothermic
- phototimer
- phototonic
- phototopographer
- phototopographic