2. (Economics) (plural) economics the portion of the national income accruing to labour as earned income, as contrasted with the unearned income accruing to capital in the form of rent, interest, and dividends. 3. (often plural) recompense, return, or yield. 4. an obsolete word for pledge.
hyacinth noun [C]. âº a pleasant-smelling âplant with a lot of âsmall âflowers that âgrow âclose together around one âthick âstem. (Definition of hyacinth from the Cambridge Advanced Learnerâs Dictionary & Thesaurus Â© Cambridge University Press).See all translations.yacinth noun [C]. âº a pleasant-smelling âplant with a lot of âsmall âflowers that âgrow âclose together around one âthick âstem. (Definition of hyacinth from the Cambridge Advanced Learnerâs Dictionary & Thesaurus Â© Cambridge University Press).
U.S. National Library of Medicine(0.00 / 0 votes)Rate this definition: Quinine. An alkaloid derived from the bark of the cinchona tree. It is used as an antimalarial drug, and is the active ingredient in extracts of the cinchona that have been used for that purpose since before 1633. Quinine is also a mild antipyretic and analgesic and has been used in common cold preparations for that purpose.