- /klaw roh"sis, kloh-/, n.1. an abnormally yellow color of plant tissues, resulting from partial failure to develop chlorophyll, caused by a nutrient deficiency or the activities of a pathogen.2. Also called greensickness. Pathol. a benign type of iron-deficiency anemia in adolescent girls, marked by a pale yellow-green complexion.[1675-85; CHLOR-1 + -OSIS]
* * *symptom of plant disease in which normally green tissue is pale, yellow, or bleached. It results from failure of chlorophyll to develop because of infection by a virus; lack of an essential mineral or oxygen; injury from alkali, fertilizer, air pollution, or cold; insect, mite, or nematode feeding; gas main leaks; compaction or change in soil level; and stem or root rot. Severely chlorotic plants are stunted, and shoots may die back to the roots. Control is aimed specifically at the causal agent of the disease.
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Chlorosis — Chlo*ro sis, n. [NL., fr. Gr. chlwro s light green: cf. F. chlorose.] 1. (Med.) The green sickness; an an[ae]mic disease of young women, characterized by a greenish or grayish yellow hue of the skin, weakness, palpitation, etc. [1913 Webster] 2.… … The Collaborative International Dictionary of English
chlorosis — chlorosis. См. хлороз. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) … Молекулярная биология и генетика. Толковый словарь.
Chlorosis — Chlorōsis (Chlorōse), s. Bleichsucht … Kleines Konversations-Lexikon
chlorosis — [klə rō′sis] n. [ModL: see CHLOR(O) & OSIS] 1. an abnormal condition of plants in which the green parts lose their color or turn yellow as a result of a lack of chlorophyll production due to disease, lack of light, etc. 2. a form of iron… … English World dictionary
Chlorosis — For the form of anemia (Deficiency of red blood cells in humans), see Chlorosis (medicine). A corn plant with severe chlorosis (left) beside a normal plant (right). In botany, chlorosis is a condition in which leaves produce insufficient… … Wikipedia
chlorosis — noun Date: 1678 1. an iron deficiency anemia especially of adolescent girls that may impart a greenish tint to the skin called also greensickness 2. a diseased condition in green plants marked by yellowing or blanching • chlorotic adjective … New Collegiate Dictionary
chlorosis — Yellowing or bleaching of plant tissues due to the loss of chlorophyll or failure of chlorophyll synthesis. Symptomatic of many plant diseases, also of deficiencies of light or certain nutrients … Dictionary of molecular biology
chlorosis — noun a) An anaemia, due to deficiency of iron, characterized by a yellow green colouration of the skin; greensickness. b) A yellowing of plant tissue due to loss or absence of chlorophyll. See Also … Wiktionary
chlorosis — Rarely used term for a form of chronic hypochromic microcytic (iron deficiency) anemia, characterized by a great reduction in hemoglobin out of proportion to the decreased number of red blood cells; observed chiefly in females from … Medical dictionary
CHLOROSIS — green sickness, a disease incident to young females at a critical period of life, causing a pale greenish complexion … The Nuttall Encyclopaedia