The Collaborative International Dictionary
Propionic \Pro`pi*on"ic\, a. [Proto- + Gr. pi`wn fat.] (Chem.) Pertaining to, derived from, or designating, an organic acid which is produced in the distillation of wood, in the fermentation of various organic substances, as glycerin, calcium lactate, etc., and is obtained as a colorless liquid having a sharp, pungent odor. Propionic acid is so called because it is the first or lowest member of the fatty acid series whose salts have a fatty feel.
Wiktionary
a. Of or pertaining to propionic acid or its derivatives; propanoic
WordNet
Wikipedia
Usage examples of "propionic".
The quantities of propionic, butyric, and valerianic acids respectively which are required to neutralise as much base as 6.
Of this liquid four quantities were taken which were severally acidulated with hydrochloric, propionic, butyric, and valerianic acids, in the proportions above indicated.
On the other hand, propionic acid, which is poisonous, does not cause much mucus to be secreted, yet the surrounding fluid became slightly pink.
It is an equally strange fact, that, though acetic and propionic acids are highly poisonous, their ally, formic acid, is not so.
Propionic acid is highly poisonous to Drosera, like its ally acetic acid, but induces inflection at a much slower rate.
She'd taken two ibuprofen tablets an hour ago and the propionic acid inhibitor should be doing its job by now.