| ahistorical | (adjective) unconcerned with or unrelated to history or to historical development or to tradition | - |
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| amphistylar | (adjective) marked by columniation having free columns in porticoes either at both ends or at both sides of a structure | Synonyms: amphiprostylar, amphiprostyle, porticoed |
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| (adjective) having columns either at both ends or at both sides | - |
| anarchist | (noun) an advocate of anarchism | Synonyms: nihilist, syndicalist |
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| anarchistic | (adjective) of or related to anarchism or tending toward anarchism | - |
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| antihistamine | (noun) a medicine used to treat allergies and hypersensitive reactions and colds; works by counteracting the effects of histamine on a receptor site | - |
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| brachistochrone | (noun) a curve between two points along which a body can move under gravity in a shorter time than for any other curve. | - |
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| calligraphist | (noun) someone skilled in penmanship | Synonyms: calligrapher |
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| catechist | (noun) one who instructs catechumens in preparation for baptism (especially one using a catechism) | - |
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| catechistic | (adjective) of or relating to or resembling a rigorous catechism | Synonyms: catechetic |
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| cosmographist | (noun) a scientist knowledgeable about cosmography | Synonyms: cosmographer |
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| deipnosophist | (noun) someone skilled at informal chitchat | - |
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| demographist | (noun) a scientist who studies the growth and density of populations and their vital statistics | Synonyms: demographer, population scientist |
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| fetishist | (noun) one who engages in fetishism (especially of a sexual nature) | - |
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| gymnosophist | (noun) member of a Hindu sect practicing gymnosophy (especially nudism) | - |
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| haematohiston | (noun) a colorless protein obtained by removing heme from hemoglobin; the oxygen carrying compound in red blood cells | Synonyms: globin, hematohiston |
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| hagiographist | (noun) the author of a worshipful or idealizing biography | Synonyms: hagiographer, hagiologist |
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| hematohiston | (noun) a colorless protein obtained by removing heme from hemoglobin; the oxygen carrying compound in red blood cells | Synonyms: globin, haematohiston |
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| histaminase | (noun) enzyme that acts as a catalyst in converting histidine to histamine | - |
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| histamine | (noun) amine formed from histidine that stimulates gastric secretions and dilates blood vessels; released by the human immune system during allergic reactions | - |
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| histidine | (noun) an essential amino acid found in proteins that is important for the growth and repair of tissue | - |
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| histiocyte | (noun) a macrophage that is found in connective tissue | - |
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| histiocytosis | (noun) a blood disease characterized by an abnormal multiplication of macrophages | - |
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| histocompatibility | (noun) condition in which the cells of one tissue can survive in the presence of cells of another tissue | - |
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| histogram | (noun) a bar chart representing a frequency distribution; heights of the bars represent observed frequencies | - |
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| histoincompatibility | (noun) incompatibility in which one person's tissue cannot be transplanted to another person | - |
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| histologic | (adjective) of or relating to histology | Synonyms: histological |
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| histological | (adjective) of or relating to histology | Synonyms: histologic |
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| histologically | (adverb) involving the use of histology or histological techniques | - |
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| histologist | (noun) anatomist who specializes in the microscopic study of animal tissues | - |
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| histology | (noun) the branch of biology that studies the microscopic structure of animal or plant tissues | - |
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| histone | (noun) a simple protein containing mainly basic amino acids; present in cell nuclei in association with nucleic acids | - |
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| historian | (noun) a person who is an authority on history and who studies it and writes about it | Synonyms: historiographer |
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| historic | (adjective) important in history | - |
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| (adjective) belonging to the past; of what is important or famous in the past | Synonyms: historical |
| historical | (adjective) used of the study of a phenomenon (especially language) as it changes through time | Synonyms: diachronic |
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| (adjective) of or relating to the study of history | - |
| (adjective) belonging to the past; of what is important or famous in the past | Synonyms: historic |
| (adjective) having once lived or existed or taken place in the real world as distinct from being legendary | - |
| historically | (adverb) with respect to history | - |
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| (adverb) throughout history | - |
| historicalness | (noun) significance owing to its history | - |
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| (noun) the state of having in fact existed in the past | - |
| historicism | (noun) a theory that social and cultural events are determined by history | - |
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| historied | (adjective) having an illustrious past | Synonyms: celebrated, storied |
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| historiographer | (noun) a person who is an authority on history and who studies it and writes about it | Synonyms: historian |
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| historiography | (noun) the writing of history | - |
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| (noun) a body of historical literature | - |
| history | (noun) the discipline that records and interprets past events involving human beings | - |
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| (noun) all that is remembered of the past as preserved in writing; a body of knowledge | - |
| (noun) a record or narrative description of past events | Synonyms: account, chronicle, story |
| (noun) the aggregate of past events | - |
| (noun) the continuum of events occurring in succession leading from the past to the present and even into the future | - |
| histrion | (noun) a theatrical performer | Synonyms: actor, player, role player, thespian |
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| histrionic | (adjective) characteristic of acting or a stage performance; often affected | Synonyms: melodramatic |
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| histrionics | (noun) a performance of a play | Synonyms: representation, theatrical, theatrical performance |
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| (noun) a deliberate display of emotion for effect | - |
| immunohistochemistry | (noun) an assay that shows specific antigens in tissues by the use of markers that are either fluorescent dyes or enzymes (such as horseradish peroxidase) | - |
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| logomachist | (noun) someone given to disputes over words | Synonyms: logomach |
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| masochist | (noun) someone who obtains pleasure from receiving punishment | - |
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| masochistic | (adjective) deriving pleasure or sexual gratification from being abused or dominated | - |
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| masochistically | (adverb) in a masochistic manner | - |
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| mephistophelean | (adjective) showing the cunning or ingenuity or wickedness typical of a devil | Synonyms: devilish, diabolic, diabolical, mephistophelian |
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| mephistophelian | (adjective) showing the cunning or ingenuity or wickedness typical of a devil | Synonyms: devilish, diabolic, diabolical, mephistophelean |
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| monarchist | (noun) an advocate of the principles of monarchy | Synonyms: royalist |
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| osteopathist | (noun) a therapist who manipulates the skeleton and muscles | Synonyms: osteopath |
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| paleographist | (noun) an archeologist skilled in paleography | Synonyms: paleographer |
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| pennywhistle | (noun) an inexpensive fipple flute | Synonyms: tin whistle, whistle |
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| prehistoric | (adjective) of or relating to times before written history | - |
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| (adjective) belonging to or existing in times before recorded history | Synonyms: prehistorical |
| (adjective) outdated | - |
| prehistorical | (adjective) belonging to or existing in times before recorded history | Synonyms: prehistoric |
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| prehistory | (noun) the time during the development of human culture before the appearance of the written word | Synonyms: prehistoric culture |
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| protohistory | (noun) the study of humans prior to the invention of writing | Synonyms: protoanthropology |
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| sadomasochist | (noun) someone who enjoys both sadism and masochism | - |
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| sadomasochistic | (adjective) of or relating to sadomasochism | - |
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| schist | (noun) any metamorphic rock that can be split into thin layers | - |
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| schistorrhachis | (noun) a not uncommon congenital defect in which a vertebra is malformed; unless several vertebrae are affected or there is myelomeningocele there are few symptoms; can be diagnosed by amniocentesis | Synonyms: rachischisis, spina bifida |
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| schistosome | (noun) flatworms parasitic in the blood vessels of mammals | Synonyms: blood fluke |
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| schistosomiasis | (noun) an infestation with or a resulting infection caused by a parasite of the genus Schistosoma; common in the tropics and Far East; symptoms depend on the part of the body infected | Synonyms: bilharzia, bilharziasis |
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| sophist | (noun) someone whose reasoning is subtle and often specious | Synonyms: casuist |
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| sophistic | (adjective) of or pertaining to sophists | - |
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| (adjective) plausible but misleading | Synonyms: sophistical |
| sophistical | (adjective) plausible but misleading | Synonyms: sophistic |
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| sophisticate | (noun) a worldly-wise person | Synonyms: man of the world |
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| (verb) make more complex or refined | - |
| (verb) alter and make impure, as with the intention to deceive | Synonyms: doctor, doctor up |
| (verb) practice sophistry; change the meaning of or be vague about in order to mislead or deceive | Synonyms: convolute, pervert, twist, twist around |
| (verb) make less natural or innocent | - |
| sophisticated | (adjective) having or appealing to those having worldly knowledge and refinement and savoir-faire | - |
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| (adjective) ahead in development; complex or intricate | Synonyms: advanced |
| (adjective) intellectually appealing | - |
| sophistication | (noun) falsification by the use of sophistry; misleading by means of specious fallacies | - |
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| (noun) the quality or character of being intellectually sophisticated and worldly through cultivation or experience or disillusionment | Synonyms: mundaneness, mundanity, worldliness |
| (noun) uplifting enlightenment | Synonyms: edification |
| (noun) being expert or having knowledge of some technical subject | - |
| (noun) a deliberately invalid argument displaying ingenuity in reasoning in the hope of deceiving someone | Synonyms: sophism, sophistry |
| sophistry | (noun) a deliberately invalid argument displaying ingenuity in reasoning in the hope of deceiving someone | Synonyms: sophism, sophistication |
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| tachistoscope | (noun) scientific instrument used by psychologists; presents visual stimuli for brief exposures | Synonyms: t-scope |
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| telegraphist | (noun) someone who transmits messages by telegraph | Synonyms: telegraph operator, telegrapher |
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| telepathist | (noun) someone with the power of communicating thoughts directly | Synonyms: mental telepathist, mind reader, thought-reader |
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| (noun) a magician who seems to discern the thoughts of another person (usually by clever signals from an accomplice) | Synonyms: mind reader, thought-reader |
| theosophist | (noun) a believer in theosophy | - |
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| thistle | (noun) any of numerous plants of the family Compositae and especially of the genera Carduus and Cirsium and Onopordum having prickly-edged leaves | - |
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| thistledown | (noun) pappus of a thistle consisting of silky featherlike hairs attached to the seed-like fruit of a thistle | - |
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| thistlelike | (adjective) resembling a thistle | - |
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| unsophisticated | (adjective) not wise in the ways of the world | Synonyms: unworldly |
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| (adjective) awkwardly simple and provincial | Synonyms: bumpkinly, hick, rustic |
| (adjective) lacking complexity | Synonyms: uncomplicated |
| whist | (noun) a card game for four players who form two partnerships; a pack of 52 cards is dealt and each side scores one point for each trick it takes in excess of six | Synonyms: long whist, short whist |
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| whistle | (noun) an inexpensive fipple flute | Synonyms: pennywhistle, tin whistle |
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| (noun) acoustic device that forces air or steam against an edge or into a cavity and so produces a loud shrill sound | - |
| (noun) a small wind instrument that produces a whistling sound by blowing into it | - |
| (noun) the act of signalling (e.g., summoning) by whistling or blowing a whistle | Synonyms: whistling |
| (noun) the sound made by something moving rapidly or by steam coming out of a small aperture | Synonyms: whistling |
| (verb) utter or express by whistling | - |
| (verb) make a whining, ringing, or whistling sound | Synonyms: sing |
| (verb) give a signal by whistling | - |
| (verb) move with, or as with, a whistling sound | - |
| (verb) move, send, or bring as if by whistling | - |
| (verb) make whistling sounds | - |
| whistleblower | (noun) an informant who exposes wrongdoing within an organization in the hope of stopping it | Synonyms: whistle-blower, whistle blower |
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| whistler | (noun) Australian and southeastern Asian birds with a melodious whistling call | Synonyms: thickhead |
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| (noun) large-headed swift-flying diving duck of Arctic regions | Synonyms: Bucephela clangula, goldeneye |
| (noun) large North American mountain marmot | Synonyms: hoary marmot, Marmota caligata, whistling marmot |
| (noun) someone who makes a loud high sound | - |
| whistlestop | (verb) tour the country in order to solicit votes for an election | - |
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| whistling | (noun) the act of whistling a tune | - |
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| (noun) the act of signalling (e.g., summoning) by whistling or blowing a whistle | Synonyms: whistle |
| (noun) the sound made by something moving rapidly or by steam coming out of a small aperture | Synonyms: whistle |