BITTER PRINCIPLE • DICCIONARIO INGLES.COM • Definition of Bitter principle

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/bˈɪtər prˈɪnsəpəl/ Listen

Bitter principle

noun

Any one of several hundred compounds having a bitter taste; not admitting of chemical classification.

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Etymology of 'Bitter principle'

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"Bitter principle" Quotes from Famous Books

... yield the same bitter principle called theine, which is found in the leaf of the Chinese tea-plant, the coffee berry, &c. Various other species of Ilex are sometimes employed in other parts of South America for a similar purpose. Although the leaves may not contain as much of the agreeable narcotic oil as those ...

— The Commercial Products of the Vegetable Kingdom • P. L. Simmonds

... discreditable—how can we expect success to the labours of those who toil all their lives, amid neglect and ingratitude, to elevate the boys of England to a higher and holier view? I have seen this taint of atheistic disregard for sin poison article after article, and infuse its bitter principle into many a young man's heart; and worse than this—adopted as it is by writers whom some consider to be mighty in intellect and leaders of opinion, I have seen it corrode the consciences and degrade the philosophy of far ...

— St. Winifred's - The World of School • Frederic W. Farrar

... "is the dried and powdered leaf Ilex Paraguayensis,—a tree in size and foliage resembling the orange, with small white, clustered flowers. It belongs to the holly family, but contains a bitter principle similar to, if not identical with, theine, or the alkaloid found ...

— The Western World - Picturesque Sketches of Nature and Natural History in North - and South America • W.H.G. Kingston

... plant maintains its health the aphis is comparatively harmless, for the plant is then able to elaborate to the full the bitter principle which is its natural protection. On a really hot day in July it is sometimes possible to detect the distinctive scent of the hop quite plainly in walking through the plantation, long before any hops appear, and when this is noticeable very little of the aphis blight ...

— Grain and Chaff from an English Manor • Arthur H. Savory