| methicillin | (noun) antibiotic drug of the penicillin family used in the treatment of certain staphylococcal infections | - |
|---|
| midbrain | (noun) the middle portion of the brain | Synonyms: mesencephalon |
|---|
| midvein | (noun) the vein in the center of a leaf | Synonyms: midrib |
|---|
| min | (noun) a unit of time equal to 60 seconds or 1/60th of an hour | Synonyms: minute |
|---|
| mithramycin | (noun) an antineoplastic drug (trade name Mithracin) used to treat cancer of the testes | Synonyms: Mithracin |
|---|
| mitomycin | (noun) a complex of antibiotic substances obtained from a streptomyces bacterium; one form (trade name Mutamycin) shows promise as an anticancer drug | Synonyms: Mutamycin |
|---|
| mocassin | (noun) soft leather shoe; originally worn by Native Americans | Synonyms: moccasin |
|---|
| moccasin | (noun) soft leather shoe; originally worn by Native Americans | Synonyms: mocassin |
|---|
| moleskin | (noun) a durable cotton fabric with a velvety nap | - |
|---|
| mombin | (noun) purplish tropical fruit | - |
|---|
| (noun) common tropical American shrub or small tree with purplish fruit | Synonyms: jocote, mombin tree, Spondias purpurea |
| mortmain | (noun) the oppressive influence of past events or decisions | Synonyms: dead hand, dead hand of the past |
|---|
| (noun) real property held inalienably (as by an ecclesiastical corporation) | Synonyms: dead hand |
| motilin | (noun) a gastrointestinal hormone that apparently participates in controlling smooth muscle contractions in the stomach and small intestine | - |
|---|
| moulin | (noun) a chute through which supraglacial water enters a glacier, boring either to the bedrock or to the depth of common crevasse formation | Synonyms: glacier mill |
|---|
| mountain | (noun) a land mass that projects well above its surroundings; higher than a hill | Synonyms: mount |
|---|
| (noun) (often followed by `of') a large number or amount or extent | Synonyms: batch, deal, flock, good deal, great deal, hatful, heap, lot, mass, mess, mickle, mint, muckle, passel, peck, pile, plenty, pot, quite a little, raft, sight, slew, spate, stack, tidy sum, wad |
| muadhdhin | (noun) the Muslim official of a mosque who summons the faithful to prayer from a minaret five times a day | Synonyms: muazzin, muezzin |
|---|
| muazzin | (noun) the Muslim official of a mosque who summons the faithful to prayer from a minaret five times a day | Synonyms: muadhdhin, muezzin |
|---|
| mucin | (noun) a nitrogenous substance found in mucous secretions; a lubricant that protects body surfaces | - |
|---|
| muezzin | (noun) the Muslim official of a mosque who summons the faithful to prayer from a minaret five times a day | Synonyms: muadhdhin, muazzin |
|---|
| muffin | (noun) a sweet quick bread baked in a cup-shaped pan | Synonyms: gem |
|---|
| mujahadein | (noun) a military force of Muslim guerilla warriors engaged in a jihad | Synonyms: mujahadeen, mujahadin, mujahedeen, mujahedin, mujahideen, mujahidin |
|---|
| mujahadin | (noun) a military force of Muslim guerilla warriors engaged in a jihad | Synonyms: mujahadeen, mujahadein, mujahedeen, mujahedin, mujahideen, mujahidin |
|---|
| mujahedin | (noun) a military force of Muslim guerilla warriors engaged in a jihad | Synonyms: mujahadeen, mujahadein, mujahadin, mujahedeen, mujahideen, mujahidin |
|---|
| mujahidin | (noun) a military force of Muslim guerilla warriors engaged in a jihad | Synonyms: mujahadeen, mujahadein, mujahadin, mujahedeen, mujahedin, mujahideen |
|---|
| mullein | (noun) any of various plants of the genus Verbascum having large usually woolly leaves and terminal spikes of yellow or white or purplish flowers | Synonyms: flannel leaf, velvet plant |
|---|
| multivitamin | (noun) a pill or tablet containing several vitamins | Synonyms: multivitamin pill |
|---|
| murrain | (noun) any disease of domestic animals that resembles a plague | - |
|---|
| muslin | (noun) plain-woven cotton fabric | - |
|---|
| mutchkin | (noun) a Scottish unit of liquid measure equal to 0.9 United States pint | - |
|---|
| mycomycin | (noun) a highly unsaturated antibiotic acid obtained from an actinomycete | - |
|---|
| mycotoxin | (noun) a toxin produced by a fungus | - |
|---|
| myelin | (noun) a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers | Synonyms: medulla, myeline |
|---|
| myoglobin | (noun) a hemoprotein that receives oxygen from hemoglobin and stores it in the tissues until needed | - |
|---|
| myosin | (noun) the commonest protein in muscle; a globulin that combines with actin to form actomyosin | - |
|---|
| nafcillin | (noun) a penicillinase-resistant form of penicillin (trade name Nafcil) used (usually in the form of its sodium salt) to treat infections caused by penicillin-resistant strains of staphylococci | Synonyms: Nafcil |
|---|
| napkin | (noun) a small piece of table linen that is used to wipe the mouth and to cover the lap in order to protect clothing | Synonyms: serviette, table napkin |
|---|
| (noun) garment consisting of a folded cloth drawn up between the legs and fastened at the waist; worn by infants to catch excrement | Synonyms: diaper, nappy |
| neomycin | (noun) an antibiotic obtained from an actinomycete and used (as a sulphate under the trade name Neobiotic) as an intestinal antiseptic in surgery | Synonyms: fradicin, Neobiotic |
|---|
| nephrotoxin | (noun) any toxin that affects the kidneys | - |
|---|
| neurolysin | (noun) any toxin that affects neural tissues | Synonyms: neurotoxin |
|---|
| neurotoxin | (noun) any toxin that affects neural tissues | Synonyms: neurolysin |
|---|
| niacin | (noun) a B vitamin essential for the normal function of the nervous system and the gastrointestinal tract | Synonyms: nicotinic acid |
|---|
| ninepin | (noun) a bowling pin of the type used in playing ninepins or (in England) skittles | Synonyms: skittle, skittle pin |
|---|
| nitrofurantoin | (noun) derivative of nitrofuran used as an antibacterial medicine (trade name Macrodantin) effective against a broad range of Gram-positive and Gram-negative bacteria; used to treat infections of the urinary tract | Synonyms: Macrodantin |
|---|
| nitroglycerin | (noun) a heavy yellow poisonous oily explosive liquid obtained by nitrating glycerol; used in making explosives and medically as a vasodilator (trade names Nitrospan and Nitrostat) | Synonyms: glyceryl trinitrate, nitroglycerine, Nitrospan, Nitrostat, trinitroglycerin |
|---|
| noggin | (noun) informal terms for a human head | Synonyms: attic, bean, bonce, dome, noodle |
|---|
| novobiocin | (noun) an antibiotic obtained from an actinomycete and used to treat infections by Gram-positive bacteria | - |
|---|
| nubbin | (noun) a small nub (especially an undeveloped fruit or ear of corn) | - |
|---|
| nucleoprotein | (noun) any of several substances found in the nuclei of all living cells; consists of a protein bound to a nucleic acid | - |
|---|
| nystatin | (noun) an antifungal and antibiotic (trade names Mycostatin and Nystan) discovered in New York State; derived from soil fungi actinomycetes | Synonyms: Mycostatin, Nystan |
|---|
| obtain | (verb) receive a specified treatment (abstract) | Synonyms: find, get, incur, receive |
|---|
| (verb) come into possession of | - |
| (verb) be valid, applicable, or true | Synonyms: hold, prevail |
| oilskin | (noun) a macintosh made from cotton fabric treated with oil and pigment to make it waterproof | Synonyms: slicker |
|---|
| olefin | (noun) any unsaturated aliphatic hydrocarbon | Synonyms: alkene, olefine |
|---|
| olein | (noun) a naturally occurring glyceride of oleic acid that is found in fats and oils | Synonyms: triolein |
|---|
| oleoresin | (noun) a naturally occurring mixture of a resin and an essential oil; obtained from certain plants | - |
|---|
| onionskin | (noun) a thin strong lightweight translucent paper used especially for making carbon copies | Synonyms: flimsy |
|---|
| opsin | (noun) retinal protein formed by the action of light on rhodopsin | - |
|---|
| opsonin | (noun) an antibody in blood serum that attaches to invading microorganisms and other antigens to make them more susceptible to the action of phagocytes | - |
|---|
| ordain | (verb) issue an order | - |
|---|
| (verb) appoint to a clerical posts | Synonyms: consecrate, order, ordinate |
| (verb) order by virtue of superior authority; decree | Synonyms: enact |
| (verb) invest with ministerial or priestly authority | - |
| origin | (noun) properties attributable to your ancestry | Synonyms: descent, extraction |
|---|
| (noun) the point of intersection of coordinate axes; where the values of the coordinates are all zero | - |
| (noun) an event that is a beginning; a first part or stage of subsequent events | Synonyms: inception, origination |
| (noun) the hereditary derivation of an individual | Synonyms: ancestry, blood, blood line, bloodline, descent, line, line of descent, lineage, parentage, pedigree, stemma, stock |
| (noun) the place where something begins, where it springs into being | Synonyms: beginning, root, rootage, source |
| (noun) the source of something's existence or from which it derives or is derived | - |
| orpin | (noun) perennial northern temperate plant with toothed leaves and heads of small purplish-white flowers | Synonyms: live-forever, livelong, orpine, Sedum telephium |
|---|
| ovalbumin | (noun) the white part of an egg; the nutritive and protective gelatinous substance surrounding the yolk consisting mainly of albumin dissolved in water | Synonyms: albumen, egg white, white |
|---|
| overstrain | (noun) too much strain | - |
|---|
| (verb) strain excessively | Synonyms: overextend |
| ovoflavin | (noun) a B vitamin that prevents skin lesions and weight loss | Synonyms: hepatoflavin, lactoflavin, riboflavin, vitamin B2, vitamin G |
|---|
| oxacillin | (noun) a form of penicillin resistant to penicillinase and effective against penicillin-resistant staphylococci | - |
|---|
| oxaprozin | (noun) a nonsteroidal anti-inflammatory drug (trade name Daypro) | Synonyms: Daypro |
|---|
| oxyhaemoglobin | (noun) the bright red hemoglobin that is a combination of hemoglobin and oxygen from the lungs | Synonyms: oxyhemoglobin |
|---|
| oxyhemoglobin | (noun) the bright red hemoglobin that is a combination of hemoglobin and oxygen from the lungs | Synonyms: oxyhaemoglobin |
|---|
| oxytocin | (noun) hormone secreted by the posterior pituitary gland (trade name Pitocin); stimulates contractions of the uterus and ejection of milk | Synonyms: Pitocin |
|---|
| pain | (noun) a somatic sensation of acute discomfort | Synonyms: pain sensation, painful sensation |
|---|
| (noun) something or someone that causes trouble; a source of unhappiness | Synonyms: annoyance, bother, botheration, infliction, nuisance, pain in the ass, pain in the neck |
| (noun) emotional distress; a fundamental feeling that people try to avoid | Synonyms: painfulness |
| (noun) a symptom of some physical hurt or disorder | Synonyms: hurting |
| (verb) cause bodily suffering to and make sick or indisposed | Synonyms: ail, trouble |
| (verb) cause emotional anguish or make miserable | Synonyms: anguish, hurt |
| paladin | (noun) someone who fights for a cause | Synonyms: champion, fighter, hero |
|---|
| palanquin | (noun) a closed litter carried on the shoulders of four bearers | Synonyms: palankeen |
|---|
| palmitin | (noun) an ester of glycerol and palmitic acid | - |
|---|
| pancreatin | (noun) extract from the pancreas of animals that contains pancreatic enzymes; used to treat pancreatitis and other conditions involving insufficient pancreatic secretions | - |
|---|
| pangolin | (noun) toothless mammal of southern Africa and Asia having a body covered with horny scales and a long snout for feeding on ants and termites | Synonyms: anteater, scaly anteater |
|---|
| pannikin | (noun) a small pan or cup (usually of tin) | - |
|---|
| papain | (noun) a proteolytic enzyme obtained from the unripe papaya; used as a meat tenderizer | - |
|---|
| paraffin | (noun) from crude petroleum; used for candles and for preservative or waterproof coatings | Synonyms: paraffin wax |
|---|
| (noun) (British usage) kerosine | Synonyms: paraffin oil |
| (noun) a series of non-aromatic saturated hydrocarbons with the general formula CnH(2n+2) | Synonyms: alkane, alkane series, methane series, paraffin series |
| patrikin | (noun) one related on the father's side | Synonyms: agnate, patrilineal kin, patrilineal sib, patrisib |
|---|
| pectin | (noun) any of various water-soluble colloidal carbohydrates that occur in ripe fruit and vegetables; used in making fruit jellies and jams | - |
|---|
| peneplain | (noun) a more or less level land surface representing an advanced stage of erosion undisturbed by crustal movements | Synonyms: peneplane |
|---|
| penguin | (noun) short-legged flightless birds of cold southern especially Antarctic regions having webbed feet and wings modified as flippers | - |
|---|
| penicillin | (noun) any of various antibiotics obtained from Penicillium molds (or produced synthetically) and used in the treatment of various infections and diseases | - |
|---|
| pepsin | (noun) an enzyme produced in the stomach that splits proteins into peptones | - |
|---|
| pertain | (verb) be a part or attribute of | Synonyms: appertain |
|---|
| (verb) be relevant to | Synonyms: bear on, come to, concern, have to do with, refer, relate, touch, touch on |
| phalloidin | (noun) one of a group of toxins from the death cap (Amanita phalloides) known as phallotoxins. | - |
|---|
| phenacetin | (noun) a white crystalline compound used as an analgesic and also as an antipyretic | Synonyms: acetophenetidin, acetphenetidin |
|---|
| 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 | - |
|---|
| phenytoin | (noun) an anticonvulsant drug (trade name Dilantin) used to treat epilepsy and that is not a sedative | Synonyms: Dilantin, diphenylhydantoin |
|---|
| phosphoprotein | (noun) containing chemically bound phosphoric acid | - |
|---|
| phycobilin | (noun) water-soluble proteinaceous pigments found in red algae and cyanobacteria | - |
|---|
| phycocyanin | (noun) blue pigment in algae | - |
|---|
| phycoerythrin | (noun) red pigment in red algae | - |
|---|
| phytotoxin | (noun) any substance produced by plants that is similar in its properties to extracellular bacterial toxin | Synonyms: plant toxin |
|---|
| pidgin | (noun) an artificial language used for trade between speakers of different languages | - |
|---|
| pigskin | (noun) leather from the skin of swine | - |
|---|
| pin | (noun) a small slender (often pointed) piece of wood or metal used to support or fasten or attach things | - |
|---|
| (noun) a piece of jewelry that is pinned onto the wearer's garment | - |
| (noun) axis consisting of a short shaft that supports something that turns | Synonyms: pivot |
| (noun) a holder attached to the gunwale of a boat that holds the oar in place and acts as a fulcrum for rowing | Synonyms: oarlock, peg, rowlock, thole, tholepin |
| (noun) a club-shaped wooden object used in bowling; set up in triangular groups of ten as the target | Synonyms: bowling pin |
| (noun) flagpole used to mark the position of the hole on a golf green | Synonyms: flag |
| (noun) cylindrical tumblers consisting of two parts that are held in place by springs; when they are aligned with a key the bolt can be thrown | Synonyms: pin tumbler |
| (noun) informal terms for the leg | Synonyms: peg, stick |
| (noun) small markers inserted into a surface to mark scores or define locations etc. | Synonyms: peg |
| (noun) when a wrestler's shoulders are forced to the mat | Synonyms: fall |
| (verb) (chess) immobilize a piece | - |
| (verb) attach or fasten with pins | - |
| (verb) pierce with a pin | - |
| (verb) to hold fast or prevent from moving | Synonyms: immobilise, immobilize, trap |
| piperacillin | (noun) a synthetic type of penicillin antibiotic (trade name Pipracil) used for moderate to severe infections | Synonyms: Pipracil |
|---|
| piperin | (noun) derived from pepper (especially black pepper); source of the hotness of black and white pepper | Synonyms: piperine |
|---|
| plain | (adjective) not elaborate or elaborated; simple | - |
|---|
| (adjective) lacking patterns especially in color | Synonyms: unpatterned |
| (adjective) free from any effort to soften to disguise | Synonyms: unvarnished |
| (adjective) clearly revealed to the mind or the senses or judgment | Synonyms: apparent, evident, manifest, palpable, patent, unmistakable |
| (adjective) not mixed with extraneous elements | Synonyms: sheer, unmingled, unmixed |
| (adjective) lacking embellishment or ornamentation | Synonyms: bare, spare, unembellished, unornamented |
| (adjective) lacking in physical beauty or proportion | Synonyms: homely |
| (noun) a basic knitting stitch made by putting the needle through the front of the stitch from the lefthand side | Synonyms: knit, knit stitch, plain stitch |
| (noun) extensive tract of level open land | Synonyms: champaign, field |
| (adverb) unmistakably (`plain' is often used informally for `plainly') | Synonyms: apparently, evidently, manifestly, obviously, patently, plainly |
| (verb) express complaints, discontent, displeasure, or unhappiness | Synonyms: complain, kick, kvetch, quetch, sound off |
| plantain | (noun) starchy banana-like fruit; eaten (always cooked) as a staple vegetable throughout the tropics | - |
|---|
| (noun) a banana tree bearing hanging clusters of edible angular greenish starchy fruits; tropics and subtropics | Synonyms: Musa paradisiaca, plantain tree |
| (noun) any of numerous plants of the genus Plantago; mostly small roadside or dooryard weeds with elliptic leaves and small spikes of very small flowers; seeds of some used medicinally | - |
| plasmin | (noun) an enzyme that dissolves the fibrin of blood clots | Synonyms: fibrinolysin |
|---|