kapok

noun

1. a plant fiber from the kapok tree; used for stuffing and insulation

   noun.substance

   Synonyms silk cotton vegetable silk

   Source: WordNet 3.0

2. 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

   noun.plant

   Synonyms bombay ceiba ceiba pentandra ceiba tree god tree silk-cotton tree white silk-cotton tree

   Source: WordNet 3.0

3. A silky wool derived from the seeds of <i>Ceiba pentandra</i> (syn. <i>Eriodendron anfractuosum</i>), a bombaceous tree of the East and West Indies.

   noun

   Source: webster1913