| alpha | (noun) the 1st letter of the Greek alphabet | - |
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| (noun) the beginning of a series or sequence | - |
| alphabet | (noun) the elementary stages of any subject (usually plural) | Synonyms: first principles, rudiments |
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| (noun) a character set that includes letters and is used to write a language | Synonyms: ABC's, ABC, ABCs |
| alphabetisation | (noun) the act of putting in alphabetical order | Synonyms: alphabetization |
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| alphabetiser | (noun) a literate person who can arrange items in alphabetical order | Synonyms: alphabetizer |
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| alphabetization | (noun) the act of putting in alphabetical order | Synonyms: alphabetisation |
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| alphabetizer | (noun) a literate person who can arrange items in alphabetical order | Synonyms: alphabetiser |
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| alphanumerics | (noun) a character set that includes letters and digits and punctuation | Synonyms: alphanumeric characters |
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| alphavirus | (noun) an arbovirus of the family Togaviridae that can cause a variety of encephalitis in horses | - |
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| analphabet | (noun) an illiterate person who does not know the alphabet | Synonyms: analphabetic |
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| analphabetic | (noun) an illiterate person who does not know the alphabet | Synonyms: analphabet |
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| analphabetism | (noun) an inability to read | Synonyms: illiteracy |
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| cellphone | (noun) a hand-held mobile radiotelephone for use in an area divided into small sections, each with its own short-range transmitter/receiver | Synonyms: cell, cellular phone, cellular telephone, mobile phone |
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| delphinium | (noun) any plant of the genus Delphinium having palmately divided leaves and showy spikes of variously colored spurred flowers; some contain extremely poisonous substances | - |
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| dolphin | (noun) any of various small toothed whales with a beaklike snout; larger than porpoises | - |
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| (noun) large slender food and game fish widely distributed in warm seas (especially around Hawaii) | Synonyms: dolphinfish, mahimahi |
| dolphinfish | (noun) large slender food and game fish widely distributed in warm seas (especially around Hawaii) | Synonyms: dolphin, mahimahi |
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| (noun) the lean flesh of a saltwater fish found in warm waters (especially in Hawaii) | Synonyms: mahimahi |
| heckelphone | (noun) an oboe pitched an octave below the ordinary oboe | Synonyms: basset oboe |
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| melphalan | (noun) antineoplastic drug (trade name Alkeran) used to treat multiple myeloma and some other malignancies | Synonyms: Alkeran |
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| methylphenidate | (noun) central nervous system stimulant (trade name Ritalin) used in the treatment of narcolepsy in adults and attention deficit disorder in children | Synonyms: Ritalin |
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| phenolphthalein | (noun) a laxative used in many preparations under various trade names; also used as an acid-base indicator in titrations involving weak acids and strong bases because it is brilliant red at high alkalinity and colorless below pH 8 | - |
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| philadelphus | (noun) any of various chiefly deciduous ornamental shrubs of the genus Philadelphus having white sweet-scented flowers, single or in clusters; widely grown in temperate regions | - |
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| resorcinolphthalein | (noun) a yellow dye that is visible even when highly diluted; used as an absorption indicator when silver nitrate solution is added to sodium chloride in order to precipitate silver chloride (turns pink when no chloride ions are left in solution and negative fluorescein ions are then absorbed) | Synonyms: fluorescein, fluoresceine, fluorescent dye |
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| sulpha | (noun) antibacterial consisting of any of several synthetic organic compounds capable of inhibiting the growth of bacteria that require PABA | Synonyms: sulfa, sulfa drug, sulfonamide |
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| sulphate | (noun) a salt or ester of sulphuric acid | Synonyms: sulfate |
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| sulphide | (noun) a compound of sulphur and some other element that is more electropositive | Synonyms: sulfide |
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| sulphur | (noun) an abundant tasteless odorless multivalent nonmetallic element; best known in yellow crystals; occurs in many sulphide and sulphate minerals and even in native form (especially in volcanic regions) | Synonyms: atomic number 16, S, sulfur |
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| sylph | (noun) an elemental being believed to inhabit the air | - |
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| (noun) a slender graceful young woman | - |
| telpher | (noun) one of the conveyances (or cars) in a telpherage | Synonyms: telfer |
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| telpherage | (noun) a transportation system in which cars (telphers) are suspended from cables and operated on electricity | Synonyms: telferage |
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