from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A secondary spiral of leaves
from the GNU version of the Collaborative International Dictionary of English
- n. A secondary spiral in phyllotaxy, as one of the evident spirals in a pine cone.
from The Century Dictionary and Cyclopedia
- n. In botany, a set of certain secondary spirals or oblique ranks which wind around the axis in opposite directions when the inter-nodes are short and the leaves approximate or overlap, as the scales of cones.
Ancient Greek παρά + στίχος ("row"). (Wiktionary)