| aborticide | (noun) the act of destroying a fetus | Synonyms: feticide |
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| (noun) a drug (or other chemical agent) that causes abortion | Synonyms: abortifacient, abortion-inducing drug |
| acaracide | (noun) a chemical agent used to kill mites | Synonyms: acaricide |
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| acaricide | (noun) a chemical agent used to kill mites | Synonyms: acaracide |
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| accidence | (noun) the part of grammar that deals with the inflections of words | Synonyms: inflectional morphology |
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| accident | (noun) anything that happens suddenly or by chance without an apparent cause | Synonyms: chance event, fortuity, stroke |
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| (noun) an unfortunate mishap; especially one causing damage or injury | - |
| accidental | (noun) a musical notation that makes a note sharp or flat or natural although that is not part of the key signature | - |
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| acid | (noun) street name for lysergic acid diethylamide | Synonyms: back breaker, battery-acid, dose, dot, Elvis, loony toons, Lucy in the sky with diamonds, pane, superman, window pane, Zen |
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| (noun) any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt | - |
| acidemia | (noun) a blood disorder characterized by an increased concentration of hydrogen ions in the blood (which falls below 7 on the pH scale) | - |
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| acidification | (noun) the process of becoming acid or being converted into an acid | - |
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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 |
| acidophil | (noun) an organism that thrives in a relatively acid environment | Synonyms: acidophile |
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| acidophile | (noun) an organism that thrives in a relatively acid environment | Synonyms: acidophil |
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| acidophilus | (noun) a bacterium that is used to make yogurt and to supplement probiotics | Synonyms: Lactobacillus acidophilus |
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| acidosis | (noun) abnormally high acidity (excess hydrogen-ion concentration) of the blood and other body tissues | - |
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| acidulousness | (noun) the taste experience when something acidic is taken into the mouth | Synonyms: acidity |
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| aminoaciduria | (noun) abnormal presence of amino acids in the urine; usually a symptom of metabolic defects | - |
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| antacid | (noun) an agent that counteracts or neutralizes acidity (especially in the stomach) | Synonyms: alkaliser, alkalizer, antiacid, gastric antacid |
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| antiacid | (noun) an agent that counteracts or neutralizes acidity (especially in the stomach) | Synonyms: alkaliser, alkalizer, antacid, gastric antacid |
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| ascidian | (noun) minute sedentary marine invertebrate having a saclike body with siphons through which water enters and leaves | - |
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| bacteriacide | (noun) any chemical agent that destroys bacteria | Synonyms: bactericide |
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| bactericide | (noun) any drug that destroys bacteria or inhibits their growth | Synonyms: antibacterial, antibacterial drug |
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| (noun) any chemical agent that destroys bacteria | Synonyms: bacteriacide |
| bombycid | (noun) moderate-sized Asiatic moth whose larvae feed on mulberry leaves and produce silk | Synonyms: bombycid moth, silkworm moth |
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| chalcid | (noun) any of various tiny insects whose larvae are parasites on eggs and larvae of other insects; many are beneficial in destroying injurious insects | Synonyms: chalcid fly, chalcid wasp, chalcidfly |
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| chalcidfly | (noun) any of various tiny insects whose larvae are parasites on eggs and larvae of other insects; many are beneficial in destroying injurious insects | Synonyms: chalcid, chalcid fly, chalcid wasp |
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| characid | (noun) any freshwater fish of the family Characinidae | Synonyms: characin, characin fish |
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| cider | (noun) a beverage made from juice pressed from apples | Synonyms: cyder |
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| ciderpress | (noun) a press that is used to extract the juice from apples | - |
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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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| coincidence | (noun) the temporal property of two things happening at the same time | Synonyms: co-occurrence, concurrence, conjunction |
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| (noun) the quality of occupying the same position or area in space | - |
| (noun) an event that might have been arranged although it was really accidental | Synonyms: happenstance |
| deciding | (noun) the cognitive process of reaching a decision | Synonyms: decision making |
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| decidua | (noun) the epithelial tissue of the endometrium | - |
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| elucidation | (noun) an interpretation that removes obstacles to understanding | Synonyms: clarification, illumination |
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| (noun) an act of explaining that serves to clear up and cast light on | - |
| feticide | (noun) the act of destroying a fetus | Synonyms: aborticide |
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| filicide | (noun) the murder of your own son or daughter | - |
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| (noun) a parent who murders his own son or daughter | - |
| flaccidity | (noun) a flabby softness | Synonyms: flabbiness, limpness |
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| fratricide | (noun) the murder of your sibling | - |
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| (noun) fire that injures or kills an ally | Synonyms: friendly fire |
| (noun) a person who murders their brother or sister | - |
| fungicide | (noun) any agent that destroys or prevents the growth of fungi | Synonyms: antifungal, antifungal agent, antimycotic, antimycotic agent |
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| genocide | (noun) systematic killing of a racial or cultural group | Synonyms: race murder, racial extermination |
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| germicide | (noun) an agent (as heat or radiation or a chemical) that destroys microorganisms that might carry disease | Synonyms: antimicrobial, antimicrobic, disinfectant |
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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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| gramicidin | (noun) an antibiotic produced by a soil bacterium; used chiefly as an antiseptic in treating local infections produced by Gram-positive bacteria | - |
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| herbicide | (noun) a chemical agent that destroys plants or inhibits their growth | Synonyms: weed killer, weedkiller |
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| hippoboscid | (noun) bloodsucking dipterous fly parasitic on birds and mammals | Synonyms: louse fly |
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| homicide | (noun) the killing of a human being by another human being | - |
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| hyperacidity | (noun) excessive acidity | - |
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| incidence | (noun) the striking of a light beam on a surface | - |
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| (noun) the relative frequency of occurrence of something | Synonyms: relative incidence |
| incident | (noun) a single distinct event | - |
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| (noun) a public disturbance | - |
| incidental | (noun) an item that is incidental | - |
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| (noun) (frequently plural) an expense not budgeted or not specified | Synonyms: incidental expense, minor expense |
| infanticide | (noun) murdering an infant | - |
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| (noun) a person who murders an infant | - |
| insecticide | (noun) a chemical used to kill insects | Synonyms: insect powder |
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| ketoacidosis | (noun) acidosis with an accumulation of ketone bodies; occurs primarily in diabetes mellitus | Synonyms: diabetic acidosis |
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| ketoaciduria | (noun) excessive amounts of ketone bodies in the urine as in diabetes mellitus or starvation | Synonyms: acetonuria, ketonuria |
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| larvacide | (noun) an insecticide that kills the larvae of insects | - |
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| larvicide | (noun) a chemical used to kill larval pests | - |
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| lucidity | (noun) free from obscurity and easy to understand; the comprehensibility of clear expression | Synonyms: clarity, clearness, limpidity, lucidness, pellucidity |
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| (noun) a lucid state of mind; not confused | - |
| lucidness | (noun) free from obscurity and easy to understand; the comprehensibility of clear expression | Synonyms: clarity, clearness, limpidity, lucidity, pellucidity |
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| mariticide | (noun) the murder of a husband by his wife | - |
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| matricide | (noun) the murder of your mother | - |
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| (noun) a person who murders their mother | - |
| mucoviscidosis | (noun) the most common hereditary disease; the child's lungs and intestines and pancreas become clogged with thick mucus; caused by defect in a single gene; no cure is known | Synonyms: CF, cystic fibrosis, fibrocystic disease of the pancreas, pancreatic fibrosis |
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| occident | (noun) the hemisphere that includes North America and South America | Synonyms: western hemisphere |
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| occidentalism | (noun) the quality or customs or mannerisms characteristic of Western civilizations | - |
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| oncidium | (noun) any orchid of the genus Oncidium: characterized by slender branching sprays of small yellow and brown flowers; often grown as houseplants | Synonyms: butterfly orchid, butterfly plant, dancing lady orchid |
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| oxyacid | (noun) any acid that contains oxygen | Synonyms: oxygen acid |
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| parricide | (noun) the murder of your own father or mother | - |
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| (noun) someone who kills his or her parent | - |
| patricide | (noun) the murder of your father | - |
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| (noun) a person who murders their father | - |
| pediculicide | (noun) a chemical agent that kills lice | - |
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| pellucidity | (noun) passing light without diffusion or distortion | Synonyms: limpidity, pellucidness |
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| (noun) free from obscurity and easy to understand; the comprehensibility of clear expression | Synonyms: clarity, clearness, limpidity, lucidity, lucidness |
| pellucidness | (noun) passing light without diffusion or distortion | Synonyms: limpidity, pellucidity |
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| pesticide | (noun) a chemical used to kill pests (as rodents or insects) | - |
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| placidity | (noun) a disposition free from stress or emotion | Synonyms: quiet, repose, serenity, tranquility, tranquillity |
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| (noun) a feeling of calmness; a quiet and undisturbed feeling | Synonyms: placidness |
| placidness | (noun) a feeling of calmness; a quiet and undisturbed feeling | Synonyms: placidity |
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| probenecid | (noun) a uricosuric drug that reduces the level of uric acid in the blood; used to treat gout | - |
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| proboscidean | (noun) massive herbivorous mammals having tusks and a long trunk | Synonyms: proboscidian |
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| proboscidian | (noun) massive herbivorous mammals having tusks and a long trunk | Synonyms: proboscidean |
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| psocid | (noun) small winged insect living on the bark and leaves of trees and feeding on e.g. fungi and decaying plant matter | - |
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| rancidity | (noun) the state of being rancid; having a rancid scent or flavor (as of old cooking oil) | - |
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| rancidness | (noun) the property of being rancid | - |
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| recidivism | (noun) habitual relapse into crime | - |
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| recidivist | (noun) someone who lapses into previous undesirable patterns of behavior | Synonyms: backslider, reversionist |
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| (noun) someone who is repeatedly arrested for criminal behavior (especially for the same criminal behavior) | Synonyms: habitual criminal, repeater |
| regicide | (noun) the act of killing a king | - |
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| (noun) someone who commits regicide; the killer of a king | - |
| scabicide | (noun) a drug that destroys the itch mite that causes scabies | - |
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| scincid | (noun) alert agile lizard with reduced limbs and an elongated body covered with shiny scales; more dependent on moisture than most lizards; found in tropical regions worldwide | Synonyms: scincid lizard, skink |
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| silicide | (noun) any of various compounds of silicon with a more electropositive element or radical | - |
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| spermatocide | (noun) a contraceptive agent that kills spermatozoa | Synonyms: spermicide |
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| spermicide | (noun) a contraceptive agent that kills spermatozoa | Synonyms: spermatocide |
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| suicide | (noun) the act of killing yourself | Synonyms: self-annihilation, self-destruction |
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| (noun) a person who kills himself intentionally | Synonyms: felo-de-se |
| thermoacidophile | (noun) archaebacteria that thrive in strongly acidic environments at high temperatures | - |
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| tortricid | (noun) any of numerous small moths having lightly fringed wings; larvae are leaf rollers or live in fruits and galls | Synonyms: tortricid moth |
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| tyrannicide | (noun) killing a tyrant | - |
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| tyrocidin | (noun) a basic polypeptide antibiotic derived from a soil bacterium; a major component of tyrothricin | Synonyms: tyrocidine |
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| tyrocidine | (noun) a basic polypeptide antibiotic derived from a soil bacterium; a major component of tyrothricin | Synonyms: tyrocidin |
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| uricaciduria | (noun) presence of abnormal amounts of uric acid in the urine; symptom of gout | - |
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| uxoricide | (noun) the murder of a wife by her husband | - |
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| (noun) a husband who murders his wife | - |
| vermicide | (noun) an agent that kills worms (especially those in the intestines) | - |
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| viricide | (noun) an agent (physical or chemical) that inactivates or destroys viruses | Synonyms: virucide |
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| virucide | (noun) an agent (physical or chemical) that inactivates or destroys viruses | Synonyms: viricide |
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