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A form of macrocytic anemia in young females characterized by marked reduction in hemoglobin and a greenish skin color.
(plant pathology)
A disease condition of green plants seen as yellowing of green parts of the plant.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a plant disease in which the formation of chlorophyll in the leaves is disrupted and photosynthetic activity is decreased. Characteristic symptoms are premature yellowing and falling of leaves, formation of dwarf leaves, desiccation of shoot apices, and dying off of active roots. Among cultivated plants, fruit and berry crops and ornamentals are most often affected.

The causes of chlorosis are varied. Infectious chlorosis is caused by viruses (for example, raspberry chlorosis and apical chlorosis of tobacco and makhorka), fungi, and other microorganisms. Pests, such as thrips and aphids, are often the carriers of the causative agents of chlorosis. Noninfectious, or functional, chlorosis develops because of unfavorable soil or climatic conditions or because of inadequacy of cultivation practices. In most cases, fruit and berry crops (especially grapes) on carbonate soils suffer from ferrous or calcareous chlorosis. Zinc and magnesium chloroses also occur. A distinctive kind of yellowing occurs on diseased plants: spots appear, and at first yellowing appears only on the lower or upper leaves or only in the intervenous areas. Hereditary chlorosis of plants (variegation, gold-leafedness) is mutagenic and inherited; it is used in the selection of ornamental plants to develop variegated forms.

The prevention of chlorosis entails the application of mineral and mineral fertilizers. Carbonate soils are acidified, interrows of orchards are mulched and planted with ground cover, and pests that are carriers of infection are destroyed. Treatment of noninfectious chlorosis involves applying deficient nutrient elements close to the active zone of the root system and administering nonradical dressings and injections of solutions containing trace elements into the trunks, branches, and roots of fruit trees. Plants suffering from infectious chlorosis are removed.


Dement’eva, M. I. Bolezni plodovykh kul’tur. Moscow, 1962.
Shpota, L. A. Khloroz rastenii v Chuiskoi doline i bor’ba s nim. Frunze, 1968.
Nakaidze, I. A. Pochvennye usloviia i khloroz vinogradnoi lozy v Gruzii. Tbilisi, 1969.


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Adults needed regular sex for optimal health, and young women's "greensickness" resulted from holding female seed too long in the womb.
In a fascinating discussion of greensickness or "the virgin's disease," Paster shows that the demand that fathers release their daughters to future husbands, paired with the demand that young women release themselves from an assumed natural reluctance to be courted, resulted in a kind of psychosocial disease that afflicted young women.
Bruce Smith's "Hearing Green" takes more explicit pleasure in leaping, from its titular catachresis through greensickness and "Greensleeves" to the Campion/Daniel debate over rhyme and ultimately to a statement that provides an implicit rationale for this associative method: "To hear green would mean, then, allowing rhyme, alliteration, and assonance to divert the sense of hearing from its rational work.
Failure to evacuate her fluids meant that the particularly noisome fluids would spoil and/or overheat and occasion the grievous illnesses chlorosis (greensickness, typically cited as a virgin's disease and usually linked to the spoiling seed found in sexually ungratified young women); furor uterinus (womb fury, with much the same profile, as are many diseases caused by trapped and polluted seed and blood since virgins had no licit outlet for sexual activity); and a whole host of other problems of wombs that remain stationary.