Now updated for CSW19. New words, if any, and new inflections of existing words, are shown in red.
| aconitine | a poisonous alkaloid obtained from aconite. |
| alkaloid | any of a class of complex organic bases of vegetable origin which have pronounced physiological actions on man (eg morphine, strychnine, nicotine). |
| antipyrine | an artificial alkaloid, believed to be efficient in abating fever. |
| apomorphia | an alkaloid prepared by dehydrating morphine. |
| apomorphine | an alkaloid prepared by dehydrating morphine. |
| atropia | an alkaloid found in deadly nightshade. |
| atropin | an alkaloid found in deadly nightshade. |
| atropine | an alkaloid found in deadly nightshade. |
| bebeerine | an alkaloid yielded by the bebeeru tree. |
| berberin | an alkaloid obtained from barberry roots. |
| berberine | an alkaloid obtained from barberry roots. |
| brucin | an alkaloid obtained from nux vomica. |
| brucine | an alkaloid obtained from nux vomica. |
| caffein | an alkaloid that occurs naturally in coffee and tea. |
| caffeinated | containing caffeine. |
| caffeine | an alkaloid that occurs naturally in coffee and tea. |
| caffeinic | of or containing caffeine. |
| castanospermine | an alkaloid obtained from the seeds of the Moreton Bay chestnut. |
| chaconine | a toxic alkaloid found in potatoes. |
| cicutine | a liquid, highly poisonous alkaloid found in hemlock. |
| cinchonidine | an alkaloid that is a stereoisomer of cinchonine, with similar properties and uses. |
| cinchonine | an alkaloid obtained from cinchona bark and used as a substitute for quinine. |
| cinchoninic | of or like cinchonine. |
| colchicine | a toxic yellow alkaloid, present esp in colchicum corms, which is used to treat gout. |
| conia | a liquid, highly poisonous alkaloid found in hemlock. |
| conicine | a liquid, highly poisonous alkaloid found in hemlock. |
| coniine | a liquid, highly poisonous alkaloid found in hemlock. |
| conin | a liquid, highly poisonous alkaloid found in hemlock. |
| conine | a liquid, highly poisonous alkaloid found in hemlock. |
| corydaline | an alkaloid obtained from the root of Corydalis lutea. |
| curarine | an alkaloid derivative of curare. |
| cytisine | an alkaloid found in laburnum. |
| daturine | atropine, or a mixture of atropine with other alkaloids. |
| emetin | an emetic alkaloid found in ipecacuanha. |
| emetine | an emetic alkaloid found in ipecacuanha. |
| ephedrin | an alkaloid obtained from the plant ephedra and used in treating hay fever, asthma etc. |
| ephedrine | an alkaloid obtained from the plant ephedra and used in treating hay fever, asthma etc. |
| ergonovine | an alkaloid derived from ergot used in the treatment of migraine. |
| ergotamine | an alkaloid derived from ergot used in the treatment of migraine. |
| eserine | an alkaloid found in the Calabar bean, used in ophthalmic surgery for its effect in contracting the pupil. |
| gelsemine | an alkaloid obtained from the yellow jasmine. |
| gelseminine | an alkaloid yielded by the gelsemium rhizome and rootlets. |
| harmalin | an alkaloid derived from harmala seeds. |
| harmaline | an alkaloid derived from harmala seeds. |
| meconin | a white, fusible, neutral substance existing in opium. |
| mezcaline | the principal alkaloid in mescal, used as a hallucinogen. |
| morphin | the principal alkaloid in opium. |
| morphine | the principal alkaloid in opium. |
| morphinic | relating to morphine. |
| muscarine | a poisonous alkaloid in fly agaric. |
| muscarinic | of or like muscarine, a poisonous alkaloid in fly agaric. |
| narceen | a narcotic alkaloid found in opium. |
| narcein | a narcotic alkaloid found in opium. |
| narceine | a narcotic alkaloid found in opium. |
| nicotin | a toxic colourless or yellowish oily liquid alkaloid which is the chief constituent of tobacco. |
| nicotine | a toxic colourless or yellowish oily liquid alkaloid which is the chief constituent of tobacco. |
| nicotined | containing nicotine. |
| nicotinic | pertaining to, or derived from, nicotine. |
| ouabain | (Somali) a poisonous alkaloid. |
| papaverine | an alkaloid derived from poppy juice and used medicinally. |
| physostigmin | an alkaloid found in the Calabar bean used esp in eye drops to reduce pressure inside the eyeball, aka eserine. |
| pilocarpin | an alkaloid obtained from jaborandi leaves. |
| pilocarpine | an alkaloid obtained from jaborandi leaves. |
| piperidine | an oily liquid alkaloid having a hot, peppery, ammoniacal odor. |
| piperine | an alkaloid found in black pepper. |
| quinidine | a cinchona alkaloid, which is an optically active isomer of quinine and is used to treat cardiac arrhythmia. |
| quinin | a colourless, bitter alkaloid obtained from cinchona bark, used as an antipyretic or analgesic. |
| quinina | a colourless, bitter alkaloid obtained from cinchona bark, used as an antipyretic or analgesic. |
| quinine | a colourless, bitter alkaloid obtained from cinchona bark, used as an antipyretic or analgesic. |
| quinolin | a pungent, colourless, oily liquid, first obtained from quinine and used eg as a food preservative. |
| quinoline | a pungent, colourless, oily liquid, first obtained from quinine and used eg as a food preservative. |
| rhoeadine | an alkaloid found in poppies. |
| solanin | a poisonous alkaloid glucoside extracted from the berries of common nightshade (Solanum nigrum). |
| solanine | a poisonous alkaloid glucoside extracted from the berries of common nightshade (Solanum nigrum). |
| sparteine | a narcotic alkaloid extracted from the tops of the common broom. |
| thebaine | a poisonous alkaloid obtained from opium. |
| thein | an alkaloid found in tea, identical to caffeine. |
| theine | an alkaloid found in tea, identical to caffeine. |
| theobromine | an alkaloid obtained from the chocolate seed, used in medicine. |
| tropin | a white crystalline alkaloid produced by decomposing atropine. |
| tropine | a white crystalline alkaloid produced by decomposing atropine. |
| tubocurarine | a toxic alkaloid obtained from the stem of a S. American vine. |
| wabain | (Somali) a poisonous alkaloid. |