aeciospore | (noun) spore of a rust fungus formed in an aecium | - |
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aecium | (noun) fruiting body of some rust fungi bearing chains of aeciospores | - |
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aegir | (noun) a high wave (often dangerous) caused by tidal flow (as by colliding tidal currents or in a narrow estuary) | Synonyms: bore, eager, eagre, tidal bore |
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aegis | (noun) kindly endorsement and guidance | Synonyms: auspices, protection |
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(noun) armor plate that protects the chest; the front part of a cuirass | Synonyms: breastplate, egis |
aeon | (noun) (Gnosticism) a divine power or nature emanating from the Supreme Being and playing various roles in the operation of the universe | Synonyms: eon |
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(noun) an immeasurably long period of time | Synonyms: eon |
(noun) the longest division of geological time | Synonyms: eon |
aepyornis | (noun) huge (to 9 ft.) extinct flightless bird of Madagascar | Synonyms: elephant bird |
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aeration | (noun) the act of charging a liquid with a gas making it effervescent | - |
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(noun) the process of exposing to air (so as to purify) | - |
aerator | (noun) an apparatus for exposing something to the air (as sewage) | - |
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aerial | (noun) a pass to a receiver downfield from the passer | Synonyms: forward pass |
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(noun) an electrical device that sends or receives radio or television signals | Synonyms: antenna, transmitting aerial |
aerialist | (noun) an acrobat who performs in the air (as on a rope or trapeze) | - |
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aerides | (noun) any orchid of the genus Aerides | - |
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aerie | (noun) any habitation at a high altitude | Synonyms: aery, eyrie, eyry |
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(noun) the lofty nest of a bird of prey (such as a hawk or eagle) | Synonyms: aery, eyrie, eyry |
aerobatics | (noun) the performance of stunts while in flight in an aircraft | Synonyms: acrobatics, stunt flying, stunting |
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aerobe | (noun) an organism (especially a bacterium) that requires air or free oxygen for life | - |
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aerobics | (noun) exercise that increases the need for oxygen | Synonyms: aerobic exercise |
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aerobiosis | (noun) life sustained in the presence of air or oxygen | - |
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aerodontalgia | (noun) pain in the teeth that results from a change in air pressure (as in flying or mountain climbing) | - |
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aerodrome | (noun) an airfield equipped with control tower and hangars as well as accommodations for passengers and cargo | Synonyms: airdrome, airport, drome |
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aerodynamics | (noun) the branch of mechanics that deals with the motion of gases (especially air) and their effects on bodies in the flow | Synonyms: aeromechanics |
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aeroembolism | (noun) obstruction of the circulatory system caused by an air bubble as, e.g., accidentally during surgery or hypodermic injection or as a complication from scuba diving | Synonyms: air embolism, gas embolism |
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(noun) pain resulting from rapid change in pressure | Synonyms: air embolism, bends, caisson disease, decompression sickness, gas embolism |
aerofoil | (noun) a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight | Synonyms: airfoil, control surface, surface |
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aerogenerator | (noun) generator that extracts usable energy from winds | Synonyms: wind generator, windmill |
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aerogram | (noun) a letter sent by air mail | Synonyms: aerogramme, air letter, airmail letter |
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aerogramme | (noun) a letter sent by air mail | Synonyms: aerogram, air letter, airmail letter |
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aerolite | (noun) a stony meteorite consisting of silicate minerals | - |
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aerology | (noun) meteorology of the total extent of the atmosphere; especially the upper layers | - |
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aeromechanics | (noun) the branch of mechanics that deals with the motion of gases (especially air) and their effects on bodies in the flow | Synonyms: aerodynamics |
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aeromedicine | (noun) the study and treatment of disorders associated with flight (especially with space flight) | Synonyms: aerospace medicine, aviation medicine |
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aeronaut | (noun) someone who operates an aircraft | Synonyms: aviator, flier, flyer |
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aeronautics | (noun) the theory and practice of navigation through air or space | Synonyms: astronautics |
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aerophagia | (noun) swallowing air (usually followed by belching and discomfort and flatulence) | - |
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aerophilately | (noun) the collection and study of airmail stamps | - |
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aerophile | (noun) a lover of aviation | - |
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aerophyte | (noun) plant that derives moisture and nutrients from the air and rain; usually grows on another plant but not parasitic on it | Synonyms: air plant, epiphyte, epiphytic plant |
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aeroplane | (noun) an aircraft that has a fixed wing and is powered by propellers or jets | Synonyms: airplane, plane |
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aerosol | (noun) a dispenser that holds a substance under pressure and that can release it as a fine spray (usually by means of a propellant gas) | Synonyms: aerosol bomb, aerosol can, aerosol container, spray can |
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(noun) a cloud of solid or liquid particles in a gas | - |
aerospace | (noun) the atmosphere and outer space considered as a whole | - |
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aery | (noun) any habitation at a high altitude | Synonyms: aerie, eyrie, eyry |
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(noun) the lofty nest of a bird of prey (such as a hawk or eagle) | Synonyms: aerie, eyrie, eyry |
aeschynanthus | (noun) a plant of the genus Aeschynanthus having somewhat red or orange flowers and seeds having distinctive hairs at base and apex | - |
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aesthesia | (noun) mental responsiveness and awareness | Synonyms: esthesia, sensibility |
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aesthesis | (noun) an unelaborated elementary awareness of stimulation | Synonyms: esthesis, sensation, sense datum, sense experience, sense impression |
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aesthete | (noun) one who professes great sensitivity to the beauty of art and nature | Synonyms: esthete |
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aesthetic | (noun) (philosophy) a philosophical theory as to what is beautiful | Synonyms: esthetic |
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aesthetician | (noun) a philosopher who specializes in the nature of beauty | Synonyms: esthetician |
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(noun) a worker skilled in giving beauty treatments (manicures and facials etc.) | Synonyms: esthetician |
aesthetics | (noun) (art) the branch of philosophy dealing with beauty and taste (emphasizing the evaluative criteria that are applied to art) | Synonyms: esthetics |
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aestivation | (noun) (botany) the arrangement of sepals and petals in a flower bud before it opens | Synonyms: estivation |
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(noun) (zoology) cessation or slowing of activity during the summer; especially slowing of metabolism in some animals during a hot or dry period | Synonyms: estivation |
aether | (noun) a medium that was once supposed to fill all space and to support the propagation of electromagnetic waves | Synonyms: ether |
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aetiologist | (noun) a specialist in the etiology of diseases | Synonyms: etiologist |
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aetiology | (noun) the philosophical study of causation | Synonyms: etiology |
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(noun) the cause of a disease | Synonyms: etiology |