| abiding | (adjective) lasting a long time | Synonyms: enduring, imperishable |
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| acaridiasis | (noun) infestation with itch mites | Synonyms: acariasis, acariosis |
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| acetophenetidin | (noun) a white crystalline compound used as an analgesic and also as an antipyretic | Synonyms: acetphenetidin, phenacetin |
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| acetphenetidin | (noun) a white crystalline compound used as an analgesic and also as an antipyretic | Synonyms: acetophenetidin, phenacetin |
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| acidic | (adjective) being or containing an acid; of a solution having an excess of hydrogen atoms (having a pH of less than 7) | - |
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| (adjective) being sour to the taste | Synonyms: acid, acidulent, acidulous |
| acidification | (noun) the process of becoming acid or being converted into an acid | - |
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| acidify | (verb) turn acidic | Synonyms: acetify |
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| (verb) make sour or more sour | Synonyms: acetify, acidulate, sour |
| acidimetric | (adjective) involving or related to acidimetry | - |
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| acidimetry | (noun) volumetric analysis using standard solutions of acids to measure the amount of a base present | - |
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| acidity | (noun) pH values below 7 | - |
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| (noun) the property of being acidic | Synonyms: sour, sourness |
| (noun) the taste experience when something acidic is taken into the mouth | Synonyms: acidulousness |
| acridid | (noun) grasshopper with short antennae | Synonyms: short-horned grasshopper |
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| acridity | (noun) extreme bitterness | Synonyms: acridness |
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| (noun) the quality of being sharply disagreeable in language or tone | Synonyms: acridness |
| (noun) having an acrid smell | - |
| actinomyxidian | (noun) of or relating to parasites of worms | - |
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| algidity | (noun) prostration characterized by cold and clammy skin and low blood pressure | - |
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| amphidiploid | (noun) (genetics) an organism or cell having a diploid set of chromosomes from each parent | - |
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| amphidiploidy | (noun) the condition of being amphidiploid | - |
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| anorchidism | (noun) absence of one of both testes | Synonyms: anorchia, anorchism |
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| antemeridian | (adjective) before noon | - |
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| antheridial | (adjective) relating to or characterized by an antheridium | - |
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| antheridiophore | (noun) gametophore bearing antheridia as in certain mosses and liverworts | - |
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| antheridium | (noun) the male sex organ of spore-producing plants; produces antherozoids; equivalent to the anther in flowers | - |
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| antidiabetic | (noun) a drug used to treat diabetes mellitus | Synonyms: antidiabetic drug |
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| antidiarrheal | (noun) a drug used to control or stop diarrhea | Synonyms: antidiarrheal drug |
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| antidiuretic | (noun) a drug that limits the formation of urine | Synonyms: antidiuretic drug |
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| arachnidian | (adjective) relating to or resembling a member of the class Arachnida | Synonyms: arachnoid, spiderlike, spiderly, spidery |
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| archidiaconal | (adjective) of or relating to an archdeacon or his office | - |
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| archidiaconate | (noun) office or position of an archdeacon | - |
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| aridity | (noun) the quality of yielding nothing of value | Synonyms: barrenness, fruitlessness |
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| (noun) a deficiency of moisture (especially when resulting from a permanent absence of rainfall) | Synonyms: aridness, thirstiness |
| ascidian | (noun) minute sedentary marine invertebrate having a saclike body with siphons through which water enters and leaves | - |
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| aspidistra | (noun) evergreen perennial with large handsome basal leaves; grown primarily as a foliage houseplant | Synonyms: Aspidistra elatio, bar-room plant, cast-iron plant |
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| avidity | (noun) a positive feeling of wanting to push ahead with something | Synonyms: avidness, eagerness, keenness |
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| backsliding | (noun) a failure to maintain a higher state | Synonyms: lapse, lapsing, relapse, relapsing, reversion, reverting |
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| basidial | (adjective) relating to or characterized by basidia | - |
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| basidiocarp | (noun) the fruiting body of a basidiomycete which bears its spores on special cells | - |
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| basidiolichen | (noun) a lichen in which the fungus component is a basidiomycete | - |
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| basidiomycete | (noun) any of various fungi of the subdivision Basidiomycota | Synonyms: basidiomycetous fungi |
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| basidiomycetous | (adjective) pertaining to or characteristic of fungi of the class Basidiomycetes | - |
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| basidiospore | (noun) a sexually produced fungal spore borne on a basidium | - |
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| basidiosporous | (adjective) of or relating to or characterized by spores produced by basidia | - |
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| basidium | (noun) a small club-shaped structure typically bearing four basidiospores at the ends of minute projections; unique to basidiomycetes | - |
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| bidirectional | (adjective) reactive or functioning or allowing movement in two usually opposite directions | - |
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| braiding | (noun) trimming used to decorate clothes or curtains | Synonyms: braid, gold braid |
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| bromidic | (adjective) given to uttering bromides | - |
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| (adjective) dull and tiresome but with pretensions of significance or originality | Synonyms: corny, platitudinal, platitudinous |
| candidiasis | (noun) an infection caused by fungi of the genus Monilia or Candida (especially Candida albicans) | Synonyms: monilia disease, moniliasis |
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| ceftazidime | (noun) a parenteral cephalosporin (trade names Fortaz and Tazicef) used to treat moderate infections | Synonyms: Fortaz, Tazicef |
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| cephaloridine | (noun) a broad spectrum semisynthetic antibiotic produced by modifying cephalosporin | - |
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| chiding | (noun) rebuking a person harshly | Synonyms: objurgation, scolding, tongue-lashing |
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| chlorhexidine | (noun) a long-lasting liquid antiseptic; used by surgeons to wash their hands before performing surgery | - |
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| cimetidine | (noun) a drug (trade name Tagamet) used to treat peptic ulcers by decreasing the secretion of stomach acid | Synonyms: Tagamet |
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| clonidine | (noun) an antihypertensive (trade name Catapres) that can be administered orally or via transdermal patches | Synonyms: Catapres |
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| clostridia | (noun) spindle-shaped bacterial cell especially one swollen at the center by an endospore | Synonyms: clostridium |
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| clostridium | (noun) spindle-shaped bacterial cell especially one swollen at the center by an endospore | Synonyms: clostridia |
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| coccidioidomycosis | (noun) an infection of the lungs and skin characterized by excessive sputum and nodules | Synonyms: coccidiomycosis, desert rheumatism, valley fever |
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| coccidiomycosis | (noun) an infection of the lungs and skin characterized by excessive sputum and nodules | Synonyms: coccidioidomycosis, desert rheumatism, valley fever |
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| coccidiosis | (noun) (veterinary medicine) infestation with coccidia | - |
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| coccidium | (noun) parasitic on the digestive epithelium of vertebrates and higher invertebrates | Synonyms: eimeria |
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| coinciding | (adjective) occurring or operating at the same time | Synonyms: co-occurrent, coincident, coincidental, concurrent, cooccurring, simultaneous |
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| confiding | (adjective) willing to entrust personal matters | - |
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| confidingly | (adverb) with trust; in a trusting manner | Synonyms: trustfully, trustingly |
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| conidiophore | (noun) a specialized fungal hypha that produces conidia | - |
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| conidiospore | (noun) an asexually produced fungal spore formed on a conidiophore | Synonyms: conidium |
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| conidium | (noun) an asexually produced fungal spore formed on a conidiophore | Synonyms: conidiospore |
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| cryptorchidism | (noun) failure of one or both testes to move into the scrotum as the male fetus develops | Synonyms: cryptorchidy, cryptorchism |
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| ctenidium | (noun) comb-like respiratory structure serving as the gill of certain mollusks | - |
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| cupidity | (noun) extreme greed for material wealth | Synonyms: avarice, avariciousness, covetousness |
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| cymbidium | (noun) any of various plants of the genus Cymbidium having narrow leaves and a long drooping cluster of numerous showy and variously colored boat-shaped flowers; extensively hybridized and cultivated as houseplants and important florists' flowers | Synonyms: cymbid |
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| cytidine | (noun) a nucleoside component of DNA; composed of cytosine and deoxyribose | Synonyms: deoxycytidine |
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| deciding | (adjective) having the power or quality of deciding | Synonyms: determinant, determinative, determining |
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| (noun) the cognitive process of reaching a decision | Synonyms: decision making |
| dehumidifier | (noun) an appliance to extract moisture from the air and make the environment more comfortable | - |
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| dehumidify | (verb) make less humid | - |
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| deoxidise | (verb) to remove oxygen from a compound, or cause to react with hydrogen or form a hydride, or to undergo an increase in the number of electrons | Synonyms: deoxidize, reduce |
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| deoxidize | (verb) to remove oxygen from a compound, or cause to react with hydrogen or form a hydride, or to undergo an increase in the number of electrons | Synonyms: deoxidise, reduce |
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| deoxycytidine | (noun) a nucleoside component of DNA; composed of cytosine and deoxyribose | Synonyms: cytidine |
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| deoxythymidine | (noun) a nucleoside component of DNA; composed of thymine and deoxyribose | Synonyms: thymidine |
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| druidism | (noun) the system of religion and philosophy taught by the Druids and their rites and ceremonies | - |
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| enchiridion | (noun) a concise reference book providing specific information about a subject or location | Synonyms: handbook, vade mecum |
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| epidiascope | (noun) an optical projector that gives images of both transparent and opaque objects | - |
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| epididymis | (noun) a convoluted tubule in each testis; carries sperm to vas deferens | - |
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| epididymitis | (noun) painful inflammation of the epididymis | - |
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| equidistant | (adjective) the same distance apart at every point | - |
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| equidistribution | (noun) a flat distribution having equal frequencies of occurrence | - |
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| euclidian | (adjective) relating to geometry as developed by Euclid | Synonyms: euclidean |
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| eunuchoidism | (noun) the state of being a eunuch (either because of lacking testicles or because they failed to develop) | Synonyms: male hypogonadism |
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| famotidine | (noun) a histamine blocker (trade name Pepcid) used to treat peptic ulcers and gastritis and esophageal reflux | Synonyms: Pepcid |
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| fastidious | (adjective) giving careful attention to detail; hard to please; excessively concerned with cleanliness | - |
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| (adjective) having complicated nutritional requirements; especially growing only in special artificial cultures | Synonyms: exacting |
| fastidiously | (adverb) in a fastidious manner | - |
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| (adverb) in a fastidious and painstaking manner | Synonyms: painstakingly |
| fastidiousness | (noun) the trait of being meticulous about matters of taste or style | - |
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| flaccidity | (noun) a flabby softness | Synonyms: flabbiness, limpness |
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| floridity | (noun) extravagant elaborateness | Synonyms: flamboyance, floridness, showiness |
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| floxuridine | (noun) antineoplastic drug used to treat some cancers; can cause loss of hair | - |
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| fluidity | (noun) the property of flowing easily | Synonyms: fluidness, liquidity, liquidness, runniness |
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| (noun) a changeable quality | Synonyms: fluidness |
| fluoridisation | (noun) the addition of a fluoride to the water supply (to prevent dental decay) | Synonyms: fluoridation, fluoridization |
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| fluoridise | (verb) subject to fluoridation; treat with fluoride | Synonyms: fluoridate, fluoridize |
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| fluoridization | (noun) the addition of a fluoride to the water supply (to prevent dental decay) | Synonyms: fluoridation, fluoridisation |
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| fluoridize | (verb) subject to fluoridation; treat with fluoride | Synonyms: fluoridate, fluoridise |
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| frigidity | (noun) a lack of affection or enthusiasm | Synonyms: chilliness, coldness, coolness, frigidness, iciness |
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| (noun) sexual unresponsiveness (especially of women) and inability to achieve orgasm during intercourse | Synonyms: frigidness |
| (noun) the absence of heat | Synonyms: cold, coldness, frigidness, low temperature |
| gelidity | (noun) coldness due to a cold environment | Synonyms: chill, iciness |
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| gliding | (noun) the activity of flying a glider | Synonyms: glide, sailing, sailplaning, soaring |
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| gliricidia | (noun) any of several small deciduous trees valued for their dark wood and dense racemes of nectar-rich pink flowers grown in great profusion on arching branches; roots and bark and leaves and seeds are poisonous | - |
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| glochidium | (noun) a barbed spine or bristle (often tufted on cacti) | Synonyms: glochid |
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