| lockjaw | (noun) an acute and serious infection of the central nervous system caused by bacterial infection of open wounds; spasms of the jaw and laryngeal muscles may occur during the late stages | Synonyms: tetanus |
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| lockkeeper | (noun) a worker in charge of a lock (on a canal) | Synonyms: lockman, lockmaster |
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| lockman | (noun) a worker in charge of a lock (on a canal) | Synonyms: lockkeeper, lockmaster |
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| lockmaster | (noun) a worker in charge of a lock (on a canal) | Synonyms: lockkeeper, lockman |
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| locknut | (noun) supplementary nut that is screwed down on a primary nut to prevent it from loosening | Synonyms: safety nut |
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| lockout | (noun) a management action resisting employee's demands; employees are barred from entering the workplace until they agree to terms | - |
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| lockring | (noun) washer that prevents a nut from loosening | Synonyms: lock ring, lock washer |
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| locksmith | (noun) someone who makes or repairs locks | - |
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| lockstep | (noun) a manner of marching in file in which each person's leg moves with and behind the corresponding leg of the person ahead | - |
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| (noun) a standard procedure that is followed mindlessly | - |
| lockstitch | (noun) machine stitch in which the top thread interlocks with the bobbin thread | - |
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| lockup | (noun) the act of locking something up to protect it | Synonyms: locking |
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| (noun) jail in a local police station | - |
| locoism | (noun) a disease of livestock caused by locoweed poisoning; characterized by weakness and lack of coordination and trembling and partial paralysis | Synonyms: loco disease |
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| locomotion | (noun) self-propelled movement | Synonyms: travel |
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| (noun) the power or ability to move | Synonyms: motive power, motivity |
| locomotive | (noun) a wheeled vehicle consisting of a self-propelled engine that is used to draw trains along railway tracks | Synonyms: engine, locomotive engine, railway locomotive |
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| locoweed | (noun) street names for marijuana | Synonyms: dope, gage, grass, green goddess, Mary Jane, pot, sens, sess, skunk, smoke, weed |
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| (noun) any of several leguminous plants of western North America causing locoism in livestock | Synonyms: crazy weed, crazyweed |
| locule | (noun) a small cavity or space within an organ or in a plant or animal | Synonyms: loculus |
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| loculus | (noun) a small cavity or space within an organ or in a plant or animal | Synonyms: locule |
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| locum | (noun) someone (physician or clergyman) who substitutes temporarily for another member of the same profession | Synonyms: locum tenens |
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| locus | (noun) the set of all points or lines that satisfy or are determined by specific conditions | - |
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| (noun) the scene of any event or action (especially the place of a meeting) | Synonyms: locale, venue |
| (noun) the specific site of a particular gene on its chromosome | - |
| locust | (noun) migratory grasshoppers of warm regions having short antennae | - |
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| (noun) any of various hardwood trees of the family Leguminosae | Synonyms: locust tree |
| (noun) hardwood from any of various locust trees | - |
| locution | (noun) a word or phrase that particular people use in particular situations | Synonyms: expression, saying |
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| malocclusion | (noun) (dentistry) a condition in which the opposing teeth do not mesh normally | - |
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| matchlock | (noun) an early style of musket; a slow-burning wick would be lowered into a hole in the breech to ignite the charge | - |
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| megalocardia | (noun) an abnormal enlargement of the heart | Synonyms: cardiomegaly, enlarged heart, megacardia |
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| megalocephaly | (noun) an abnormally large head; differs from hydrocephalus because there is no increased intracranial pressure and the overgrowth is symmetrical | Synonyms: macrocephaly, megacephaly |
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| megalocyte | (noun) abnormally large red blood cell (associated with pernicious anemia) | Synonyms: macrocyte |
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| mineralocorticoid | (noun) hormone that is one of the steroids of the adrenal cortex that influences the metabolism of sodium and potassium | - |
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| moloch | (noun) any lizard of the genus Moloch | - |
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| myelocyte | (noun) an immature leukocyte normally found in bone marrow | - |
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| oarlock | (noun) a holder attached to the gunwale of a boat that holds the oar in place and acts as a fulcrum for rowing | Synonyms: peg, pin, rowlock, thole, tholepin |
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| ochlocracy | (noun) a political system in which a mob is the source of control; government by the masses | Synonyms: mobocracy |
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| omphalocele | (noun) protrusion of the intestine and omentum through a hernia in the abdominal wall near the navel; usually self correcting after birth | Synonyms: umbilical hernia |
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| padlock | (noun) a detachable lock; has a hinged shackle that can be passed through the staple of a hasp or the links in a chain and then snapped shut | - |
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| phylloclad | (noun) a flattened stem resembling and functioning as a leaf | Synonyms: cladode, cladophyll, phylloclade |
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| phylloclade | (noun) a flattened stem resembling and functioning as a leaf | Synonyms: cladode, cladophyll, phylloclad |
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| pillock | (noun) a person who is not very bright | Synonyms: dolt, dullard, poor fish, pudden-head, pudding head, stupe, stupid, stupid person |
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| pilocarpine | (noun) cholinergic alkaloid used in eyedrops to treat glaucoma | - |
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| ploce | (noun) (rhetoric) repetition to gain special emphasis or extend meaning | - |
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| pollock | (noun) important food and game fish of northern seas (especially the northern Atlantic); related to cod | Synonyms: Pollachius pollachius, pollack |
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| (noun) lean white flesh of North Atlantic fish; similar to codfish | Synonyms: pollack |
| psilocin | (noun) a hallucinogenic compound obtained from a mushroom | Synonyms: psilocybin |
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| (noun) a substituted tryptamine alkaloid and a serotonergic psychedelic substance, present in most psychedelic mushrooms together with its phosphorylated counterpart psilocybin. | Synonyms: psilocine, psilocyn, psilotsin |
| psilocine | (noun) a substituted tryptamine alkaloid and a serotonergic psychedelic substance, present in most psychedelic mushrooms together with its phosphorylated counterpart psilocybin. | Synonyms: psilocin, psilocyn, psilotsin |
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| psilocybin | (noun) a hallucinogenic compound obtained from a mushroom | Synonyms: psilocin |
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| psilocyn | (noun) a substituted tryptamine alkaloid and a serotonergic psychedelic substance, present in most psychedelic mushrooms together with its phosphorylated counterpart psilocybin. | Synonyms: psilocin, psilocine, psilotsin |
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| radiolocation | (noun) measuring instrument in which the echo of a pulse of microwave radiation is used to detect and locate distant objects | Synonyms: microwave radar, radar, radio detection and ranging |
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| reallocation | (noun) a new apportionment (especially a new apportionment of congressional seats in the United States on the basis of census results) | Synonyms: reallotment, reapportionment |
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| (noun) a share that has been allocated again | - |
| relocation | (noun) the act of changing your residence or place of business | Synonyms: move |
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| (noun) the transportation of people (as a family or colony) to a new settlement (as after an upheaval of some kind) | Synonyms: resettlement |
| reticulocyte | (noun) an immature red blood cell containing a network of filaments or granules | - |
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| roadblock | (noun) a barrier set up by police to stop traffic on a street or road in order to catch a fugitive or inspect traffic etc. | Synonyms: barricade |
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| (noun) any condition that makes it difficult to make progress or to achieve an objective | Synonyms: barrier |
| rowlock | (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, pin, thole, tholepin |
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| schlock | (noun) merchandise that is shoddy or inferior | Synonyms: dreck, shlock |
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| schlockmeister | (noun) (slang) a merchant who deals in shoddy or inferior merchandise | Synonyms: shlockmeister |
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| sherlock | (noun) someone who can be employed as a detective to collect information and assist in criminal investigations | Synonyms: operative, PI, private detective, private eye, private investigator, shamus |
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| shlock | (noun) merchandise that is shoddy or inferior | Synonyms: dreck, schlock |
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| shlockmeister | (noun) (slang) a merchant who deals in shoddy or inferior merchandise | Synonyms: schlockmeister |
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| shylock | (noun) someone who lends money at excessive rates of interest | Synonyms: loan shark, moneylender, usurer |
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| staphylococci | (noun) spherical Gram-positive parasitic bacteria that tend to form irregular colonies; some cause boils or septicemia or infections | Synonyms: staph, staphylococcus |
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| staphylococcus | (noun) spherical Gram-positive parasitic bacteria that tend to form irregular colonies; some cause boils or septicemia or infections | Synonyms: staph, staphylococci |
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| sunblock | (noun) a cream spread on the skin; contains a chemical (as PABA) to filter out ultraviolet light and so protect from sunburn | Synonyms: sun blocker, sunscreen |
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| symploce | (noun) repetition of a word or phrase at the beginning and another at the end of successive clauses, i.e., simultaneous use of anaphora and epistrophe | - |
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| translocation | (noun) (genetics) an exchange of chromosome parts | - |
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| (noun) the transport of dissolved material within a plant | - |
| velocipede | (noun) a vehicle with three wheels that is moved by foot pedals | Synonyms: tricycle, trike |
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| (noun) any of several early bicycles with pedals on the front wheel | - |
| velociraptor | (noun) small active carnivore that probably fed on protoceratops; possibly related more closely to birds than to other dinosaurs | - |
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| velocity | (noun) distance travelled per unit time | Synonyms: speed |
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| warlock | (noun) a male witch or demon | - |
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| wedlock | (noun) the state of being a married couple voluntarily joined for life (or until divorce) | Synonyms: marriage, matrimony, spousal relationship, union |
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