Dictionary.com
Thesaurus.com

cladoptosis

American  
[klad-op-toh-sis, kley-dop-] / ˌklæd ɒpˈtoʊ sɪs, ˌkleɪ dɒp- /

noun

Botany.
  1. the annual shedding of twigs or branches instead of leaves, as in certain cypresses.


Etymology

Origin of cladoptosis

First recorded in 1880–85; clado- + ptosis