'Kapok' definitions:

Definition of 'kapok'

From: WordNet
noun
A plant fiber from the kapok tree; used for stuffing and insulation [syn: kapok, silk cotton, vegetable silk]
noun
Massive tropical tree with deep ridges on its massive trunk and bearing large pods of seeds covered with silky floss; source of the silky kapok fiber [syn: kapok, ceiba tree, silk-cotton tree, white silk-cotton tree, Bombay ceiba, God tree, Ceiba pentandra]

Definition of 'Kapok'

From: GCIDE
  • Kapok \Ka*pok"\, n. [Prob. fr. the native name.] (Bot.) A silky wool derived from the seeds of Ceiba pentandra (syn. Eriodendron anfractuosum), a bombaceous tree of the East and West Indies. [Webster 1913 Suppl.]