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1. Informal
a. A narcotic, especially an addictive narcotic.
b. Narcotics considered as a group.
c. An illicit drug, especially marijuana.
2. A narcotic preparation used to stimulate a racehorse.
3. Informal A stupid person; a dolt.
4. Informal Factual information, especially of a private nature.
5. Chemistry An absorbent or adsorbent material used in certain manufacturing processes, such as the nitroglycerin used in making dynamite.
6. A type of lacquer formerly used to protect, waterproof, and tauten the cloth surfaces of airplane wings.
7. Chiefly Southern US A carbonated soft drink containing an extract of the kola nut and other flavorings.
8. Lower Northern US Syrup or sweet sauce poured on ice cream.
v. doped, dop·ing, dopes
1. Informal
a. To administer a narcotic to: was doped up for the operation.
b. To add a narcotic to: They doped his drink before robbing him.
c. To administer a performance-enhancing substance to (an athlete).
d. To subject (an athlete) to blood doping.
2. Electronics To treat (a semiconductor) with a dopant.
v.intr. Informal
1. To take narcotics or a performance-enhancing substance.
2. To engage in blood doping.
adj. Slang
Excellent; outstanding.
Phrasal Verb:
dope out Informal
1. To discover or plan: "I just had to dope out a way to get there without getting caught" (Leslie Edgerton).
2. To solve or decipher: dope out a puzzle.

[Dutch doop, sauce, from doopen, to dip.]

dop′er n.
Word History: The word dope originated in American English and is a borrowing of the Dutch word doop, "sauce." (New York City was once a Dutch colony, New Amsterdam, and many words originally distinctive to American English, like boss and cookie, were borrowed from Dutch colonists in the region.) Throughout the 1800s, dope meant "gravy," and in the North Midland United States, particularly Ohio, dope is still heard as the term for a topping for ice cream, such as chocolate syrup or fruit sauce. Also in the 1800s, the meaning of dope was extended to include various medicinal mixtures or syrups, including the syrups from which soda-fountain drinks like Coca-Cola were prepared. A continuation of this usage survives in the South, particularly in South Carolina, where dope refers to the carbonated soft drink that elsewhere in the United States is called cola. Dope was especially used of those medicinal preparations that produced a stupefying effect, and it even became a slang term for the dark, molasses-like form of opium that was smoked in opium dens. The common modern meanings of dope, "a narcotic substance" and "narcotics considered as a group," developed from this use of the word.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.doped - treated or impregnated with a foreign substance
treated - subjected to a physical (or chemical) treatment or action or agent; "the sludge of treated sewage can be used as fertilizer"; "treated timbers resist rot"; "treated fabrics resist wrinkling"
2.doped - under the influence of narcotics; "knocked out by doped wine"; "a drugged sleep"; "were under the effect of the drugged sweets"; "in a stuperous narcotized state"
drunk, inebriated, intoxicated - stupefied or excited by a chemical substance (especially alcohol); "a noisy crowd of intoxicated sailors"; "helplessly inebriated"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


Informal. Stupefied, intoxicated, or otherwise influenced by the taking of drugs:
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in classic literature ?
"All the same, I believe it was the hand of Fate that doped out the way for me to find her."
Kirwa is coached by her husband Joshua Kiprugut Kemei, who also handles World Half Marathon record-holder Abraham Kiptum, who was kicked out of the London Marathon in April after he was caught to have doped.
Just recently, BNOC chief executive officer, Tuelo Serufho raised concern about athletes who still doped despite receiving education about the disadvantages of doping.
prepared Ce-Cu codoped Sn[O.sub.2] nanopowders by the sol-gel method and studied the influence of doping on the electronic structure and photoelectric properties of Sn[O.sub.2] by first principles; the results showed that the bandgap was reduced by Ce-Cu codoping, and the electrical properties of Sn[O.sub.2] were improved [6]; Liu calculated the band structure and state density of Bi-, Cu-, Ni-, Co-, and Ti-doped Sn[O.sub.2] by CASTEP software and showed that several doped elements can improve the electrical performance of Sn[O.sub.2], and the best doping element is Bi [7]; Liu et al.
(a) Fluorescence recovery efficiency F/[F.sub.0] response of the N- doped CDs toward [Fe.sup.3+] and other interference.
Presenting findings from their research on lanthanide glasses and materials, physicists and material scientists cover tunable and white light generation in lanthanide doped novel fluorophosphate glasses, lanthanides co-doped phosphate glasses for broadband applications, lanthanum doped borophosphate glasses for nuclear waste immobilization, crystallization studies of cerium containing iron borophosphate glasses/glass-ceramics, spectroscopic properties and energy transfer parameters of Nd3+ and Sm3+ doped lithium borate glasses, the relationship between the structural modification and luminescence efficiencies of ZnF2-Mo-TeO2 glasses doped with Ho3+ and Er3+ ions, and luminescence and energy transfer phenomena in lanthanide ions doped phosphor and glassy materials.
It is interesting to note that the particle size of La doped ZnO is smaller as compared with that of the pure ZnO.
The first benchmark describes a situation in which the ban on doping is perfect and a drug-free sport is implemented (e.g., the fight against doping detects all doped athletes).
Ti[O.sub.2] modification has been justified to various kinds of approaches by metal-ion doped Ti[O.sub.2] and non-metal doped-Ti[O.sub.2].
Since the discovery of room temperature ferromagnetism in Mn doped ZnO and GaN by Dietl et al.
In this paper, we double doped the quantum dot sensitizer, introduced two levels [12], and doped the CdS quantum dot with Cu, In.
The doped system modifies the electronic and photophysical properties of QDs [13].