malathionn.

Brit.

/ˌmaləˈθʌɪən/, U.S.

/ˌmæləˈθaɪɑn/

Origin: A variant or alteration of another lexical item. Etymon: English malathon.

Etymology: Altered form of malathon, the name originally proposed for the substance < mal- (in diethyl maleate ) and -th- (in dimethyl dithiophosphoric acid ), from both of which it is manufactured, the connective -a- and terminal -on probably being after marathon n.After difficulty was encountered in the trademarking of malathon (see quot. 1953²) a variant with -i- (compare thio- comb. form, parathion n.) replaced it, and this was later registered in the United States both as a generic (i.e. non-proprietary) name and as a trade mark of the American Cyanamid Co.

An organophosphorus compound considered to have relatively low toxicity to mammals, used as an insecticide and parasiticide.

ΚΠ

1953 Official Gaz. (U.S. Patent Office) 14 Apr. 322/2 American Cyanamid Company... Malathion for insecticide.

1953 Substitution of Malathion for Malathon as Coined (Generic) Name for Insecticidal Chemical O,O-Dimethyl Dithiophosphate of Diethyl Mercaptosuccinate (Interdept. Comm. Pest Control, Bureau Entomol. & Plant Quarantine, U.S. Dept. Agric.) On January 30, 1952 the Interdepartmental Committee on Pest Control approved the name ‘malathon’ as coined name for O,O-dimethyl dithiophosphate of diethyl mercaptosuccinate. Because of difficulty encountered in the trade-marking of the name selected at first the commercial sponsor, American Cyanamid Co., decided to change the name to ‘malathion’. The American Chemical Society and the American Medical Association are agreeable to the change. Malathion has been registered with the Trade-Mark Division and released for general use. On March 27, 1953, the Interdepartmental Committee on Pest Control approved the name ‘malathion’ as a coined (generic) name for the chemical in question.

1955 Sci. News Let. 3 Sept. 157/1 The insecticides DDT, EPN, heptachlor and malathion have been tested in granular forms.

1964 Which? Apr. 114/1 The organophosphorus compounds, such as dimethoate, malathion, menazon, are mainly poisonous to sucking insects, such as greenfly.

1977 Time (Atlantic ed.) 12 Sept. 56/3 Health authorities are now using more of other insecticides, such as Malathion and propoxur to kill DDT-resistant mosquitoes.

1992 Garden Answers Jan. 13/4 Regularly applied sprays, such as those based on pyrethrum or malathion, enable you to harvest your crops without problems.

This entry has been updated (OED Third Edition, June 2000; most recently modified version published online March 2022).

单词	malathion
释义	malathionn. Brit. /ˌmaləˈθʌɪən/, U.S. /ˌmæləˈθaɪɑn/ Origin: A variant or alteration of another lexical item. Etymon: English malathon. Etymology: Altered form of malathon, the name originally proposed for the substance < mal- (in diethyl maleate ) and -th- (in dimethyl dithiophosphoric acid ), from both of which it is manufactured, the connective -a- and terminal -on probably being after marathon n.After difficulty was encountered in the trademarking of malathon (see quot. 1953²) a variant with -i- (compare thio- comb. form, parathion n.) replaced it, and this was later registered in the United States both as a generic (i.e. non-proprietary) name and as a trade mark of the American Cyanamid Co. An organophosphorus compound considered to have relatively low toxicity to mammals, used as an insecticide and parasiticide. ΚΠ 1953 Official Gaz. (U.S. Patent Office) 14 Apr. 322/2 American Cyanamid Company... Malathion for insecticide. 1953 Substitution of Malathion for Malathon as Coined (Generic) Name for Insecticidal Chemical O,O-Dimethyl Dithiophosphate of Diethyl Mercaptosuccinate (Interdept. Comm. Pest Control, Bureau Entomol. & Plant Quarantine, U.S. Dept. Agric.) On January 30, 1952 the Interdepartmental Committee on Pest Control approved the name ‘malathon’ as coined name for O,O-dimethyl dithiophosphate of diethyl mercaptosuccinate. Because of difficulty encountered in the trade-marking of the name selected at first the commercial sponsor, American Cyanamid Co., decided to change the name to ‘malathion’. The American Chemical Society and the American Medical Association are agreeable to the change. Malathion has been registered with the Trade-Mark Division and released for general use. On March 27, 1953, the Interdepartmental Committee on Pest Control approved the name ‘malathion’ as a coined (generic) name for the chemical in question. 1955 Sci. News Let. 3 Sept. 157/1 The insecticides DDT, EPN, heptachlor and malathion have been tested in granular forms. 1964 Which? Apr. 114/1 The organophosphorus compounds, such as dimethoate, malathion, menazon, are mainly poisonous to sucking insects, such as greenfly. 1977 Time (Atlantic ed.) 12 Sept. 56/3 Health authorities are now using more of other insecticides, such as Malathion and propoxur to kill DDT-resistant mosquitoes. 1992 Garden Answers Jan. 13/4 Regularly applied sprays, such as those based on pyrethrum or malathion, enable you to harvest your crops without problems. This entry has been updated (OED Third Edition, June 2000; most recently modified version published online March 2022). < n.1953
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