| 单词 | morphactin |
| 释义 | morphactin in British English (mɔːˈfæktɪn) noun a synthetic compound containing fluorine that controls plant growth and development morphactin in American English (mɔrˈfæktɪn) noun Biochemistry any of various synthetic compounds, derived from fluorine and carboxylic acid, that regulate the growth and development of plants Word origin [1965–70; prob. morph- + act(ive) or act(ivate) + -in2]This word is first recorded in the period 1965–70. Other words that entered Englishat around the same time include: T cell, isometric exercise, no-fault, overdub, stun gun-in is a noun suffix used in a special manner in chemical and mineralogical nomenclature(glycerin; acetin, etc.). In spelling, usage wavers between -in and -ine. In chemistry a certain distinction of use is attempted, basic substances havingthe termination -ine rather than -in (aconitine; aniline, etc.), and -in being restricted to certain neutral compounds, glycerides, glucosides, and proteids(albumin; palmitin, etc.), but this distinction is not always observedExamples of 'morphactin' in a sentence |
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