fecula

[L.faecula burnt tartar or salt of tartar, dim. of faex, faecis, sediment, dregs: cf. F. fécule.]
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.

Foods that are almost solely starch; prepared from roots and stems by grating, e.g. tapioca, sago, and arrowroot; starchy powder from rice, potatoes, etc.

The noun has one meaning:

Meaning #1: excreta (especially of insects)