Definition of "starch"
starch
/stɑɹt͡ʃ/
noun
countable and uncountable, plural starches
(uncountable) A widely diffused vegetable substance, found especially in seeds, bulbs and tubers, as extracted (e.g. from potatoes, corn, rice, etc.) in the form of a white, glistening, granular or powdery substance, without taste or smell, and giving a very peculiar creaking sound when rubbed between the fingers. It is used as a food, in the production of commercial grape sugar, for stiffening linen in laundries, in making paste, etc.
(uncountable) Fortitude.