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Malathion is an organophosphate insecticide which acts as an acetylcholinesterase inhibitor. In the USSR , it was known as carbophos , in New Zealand and Australia as maldison and in South Africa as mercaptothion .
The Tamil Wikipedia is the largest Wikipedia among Indian languages and the 60th largest Wikipedia by article count (as of 18 December 2024). It is also the first and only Wikipedia of Dravidian origin to possess more than 150,000+ articles (as of 2022).
Isomalathion is an impurity found in some batches of malathion. Whereas the structure of malation is, generically, RSP(S)(OCH 3) 2, the connectivity of isomalathion is RSPO(SCH 3)(OCH 3). It arises by heating malathion. Being significantly more toxic to humans than malathion, it has resulted in human poisonings. [1]
The project was funded by the Union Government of India, the State Government of then Madras Presidency and many Tamil well wishers. The Tamil Development Academy announced its intent to produce this encyclopedia on the day of Indian Independence 15 August 1947. The work started in the academy's Madras University Campus on 20 October 1947. [1]
Tamil script dating to 500 BCE found at Porunthal site is located 12 km South West of Palani, Tamil Nadu [9] [10] Tamil script dating to 500 BCE found at Kodumanal, Chennimalai near Erode, Tamil Nadu [9] [10] Punch-marked coins of 5th century BCE found at Karur, on the bank of river Amaravathi, is located at 78 km from Tiruchirappalli, Tamil ...
Tamil language, the native language of the Tamils; Tamiloid languages, Dravidian languages related to Tamil, spoken in India; Tamil script, the writing system of the Tamil language Tamil (Unicode block), a block of Tamil characters in Unicode; Tamil dialects, referencing geographical variations in speech; Tamil culture, culture of the Tamil people
The Arabic letter صٜ has not been used in a widespread manner for representing the Tamil letter ள (representing the sound ). Most historic sources use the letter ۻ for this Tamil letter as well as for the Tamil letter ழ (representing the sound ). For the Tamil letter க, representing the sound [k ~ g], the Arabic letter ك is used.
Tamil is a Unicode block containing characters for the Tamil, and Saurashtra languages of Tamil Nadu India, Sri Lanka, Singapore, and Malaysia. In its original incarnation, the code points U+0B82..U+0BCD were a direct copy of the Tamil characters A2-ED from the 1988 ISCII standard.