parastichy

noun

pa·​ras·​ti·​chy

pəˈrastəkē

plural -es

: a hypothetical oblique or secondary spiral line joining leaves or scales where the internodes of the axis are short and the members crowded (as in a pine cone)

also : the arrangement of leaves or scales along such lines compare orthostichy

Word History

Etymology

International Scientific Vocabulary para- entry 1 + Greek stichos row + International Scientific Vocabulary -y

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now