cocaine
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GC: n

S: TheGuardian – https://www.theguardian.com/society/2020/mar/12/wastewater-tests-suggest-drop-in-cocaine-use-in-london (last access: 8 April 2020); TheTelegraph – https://www.telegraph.co.uk/politics/2020/03/12/scientists-reveal-cocaine-use-widespread-traces-drug-water-supply/ (last access: 8 April 2020).

N: 1. 1874, from Modern Latin cocaine (1856), coined by Albert Niemann of Gottingen University from coca (from Quechua cuca) + chemical suffix -ine. A medical coinage, the drug was used 1870s as a local anaesthetic for eye surgery, etc.
2. It is a powerful drug which some people take for pleasure, but which they can become addicted to.
3. An addictive narcotic drug derived from coca leaves or synthesized, used medicinally as a topical anaesthetic. Formula: C17 H21NO4.
4. Stardust, gold dust, rich man’s drug: american drug slang for cocaine.

S: 1. OED – https://www.etymonline.com/search?q=cocaine (last access: 3 April 2020). 2&3. Collins – https://www.collinsdictionary.com/dictionary/english/cocaine (last access: 8 April 2020). 4. TERMIUM PLUS – https://www.btb.termiumplus.gc.ca/tpv2alpha/alpha-eng.html?lang=eng&i=1&srchtxt=cocaine&codom2nd_wet=1#resultrecs (last access: 11 April 2020).

SYN: coke, bernies. (depending on context)

S: TERMIUM PLUS – https://www.btb.termiumplus.gc.ca/tpv2alpha/alpha-eng.html?lang=eng&i=1&srchtxt=cocaine&codom2nd_wet=1#resultrecs (last access: 8 April 2020)

CR: addiction, alkaloid, amphetamine, drug, LSD, methylenedioxymethamphetamine, narcotic.