Glossary · Nouns · E
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TermTypeDefinitionClassificationsUpdated
Epacrisnounany heathlike evergreen shrub of the genus Epacris grown for their showy and crowded spikes of small bell-shaped or tubular flowersverified
Ependymanounthin epithelial membrane lining the ventricles of the brain and the spinal cord canalverified
Epenthesisnounthe insertion of a vowel or consonant into a word to make its pronunciation easierverified
Ephedranounjointed and nearly leafless desert shrub having reduced scalelike leaves and reddish fleshy seedsverified
Ephedrinenounwhite odorless powdered or crystalline alkaloid from plants of the genus Ephedra (especially Ephedra sinica) or made syntheticallyverified
Ephemeral KeynounMWEA cryptographic key that is generated for each execution of a key establishment process and that meets other requirements of the key type (e.g., unique to each message or session). In some cases, ephemeral keys are used more than once within a single session (e.g., broadcast applications) where the sender generates only one ephemeral key pair per message, and the private key is combined separately with each recipient’s public key.CredentialRestricted
Ephemeral PortnounMWEAlso called a transient port or a temporary port. Usually is on the client side. It is set up when a client application wants to connect to a server and is destroyed when the client application terminates. It has a number chosen at random that is greater than 1023.Network
Ephemerisnounan annual publication containing astronomical tables that give the positions of the celestial bodies throughout the yearverified
Ephemeronnounanything short-lived, as an insect that lives only for a day in its winged formverified
Epicardianounthe short part of the esophagus extending downward from the diaphragm to the stomachverified
Epicondylenouna projection on a bone above a condyle serving for the attachment of muscles and ligamentsverified
Epicureanismnouna doctrine of hedonism that was defended by several ancient Greek philosophersverified
Epicyclic GearnounMWEan outer gear that revolves about a central sun gear of an epicyclic trainverified
Epicyclic Gear TrainnounMWEa system of epicyclic gears in which at least one wheel axis itself revolves about another fixed axisverified
Epicyclic TrainnounMWEa system of epicyclic gears in which at least one wheel axis itself revolves about another fixed axisverified
Epideictic OratorynounMWEa type of oratory used to eulogize or condemn a person or group of peopleverified
Epidemic CholeranounMWEan acute intestinal infection caused by ingestion of contaminated water or foodverified
Epidemic DiseasenounMWEany infectious disease that develops and spreads rapidly to many peopleverified
Epidemic HysertianounMWEa condition in which a large group of people exhibit the same state of violent mental agitationverified
Epidemic MyalgianounMWEan acute infectious disease occurring in epidemic form and featuring paroxysms of pain (usually in the chest)verified
Epidemic ParotitisnounMWEan acute contagious viral disease characterized by fever and by swelling of the parotid glandsverified
Epidemic PleurodynianounMWEan acute infectious disease occurring in epidemic form and featuring paroxysms of pain (usually in the chest)verified
Epidemic RoseolanounMWEa contagious viral disease that is a milder form of measles lasting three or four daysverified
Epidemiologistnouna medical scientist who studies the transmission and control of epidemic diseasesverified
Epidemiologynounthe branch of medical science dealing with the transmission and control of diseaseverified
Epidiascopenounan optical projector that gives images of both transparent and opaque objectsverified
Epidural AnaesthesianounMWEregional anesthesia resulting from injection of an anesthetic into the epidural space of the spinal cordverified
Epidural AnesthesianounMWEregional anesthesia resulting from injection of an anesthetic into the epidural space of the spinal cordverified
Epidural InjectionnounMWEinjection of an anesthetic substance into the epidural space of the spinal cord in order to produce epidural anesthesiaverified
Epigastriumnounthe upper abdomen region below the sternum and lying above or over the stomachverified
Epikeratophakianounusing a piece of donated corneal tissue to repair the eye of someone who has had a cataract removedverified
Epilepsia MajornounMWEepilepsy in which the attacks involve loss of consciousness and tonic spasms of the musculature followed by generalized jerkingverified
Epilepsia MinornounMWEepilepsy characterized by paroxysmal attacks of brief clouding of consciousness (and possibly other abnormalities)verified
Epilepsynouna disorder of the central nervous system characterized by loss of consciousness and convulsionsverified
Epilognouna short speech (often in verse) addressed directly to the audience by an actor at the end of a playverified
Epiloguenouna short speech, often in verse, addressed directly to the audience by an actor at the end of a playverified
Epinephrinnouna catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin)verified
Epinephrinenouna catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin)verified