fecula \fec"u*la\, n.; pl. {fecul[ae]} [L.faecula burnt tartar
or salt of tartar, dim. of faex, faecis, sediment, dregs: cf.
F. f['e]cule.]
Any pulverulent matter obtained from plants by simply
breaking down the texture, washing with water, and
subsidence. Especially:
(a) The nutritious part of wheat; starch or farina; -- called
also {amylaceous fecula}.
(b) The green matter of plants; chlorophyll.
[1913 Webster]