Showing 301 to 400 of 3,036.
- ASPLENIUMSynonym of spleenwort: any plant of the genus Asplenium.
- ASTERAny of several plants of the genus Aster; one of its flowers.
- ASTERIONThe point on the side of the skull corresponding to the posterior end of the parietomastoid suture.
- ASTERISMAn unofficial constellation (small group of stars that forms a visible pattern).
- ASTEROIDA naturally occurring solid object, which is smaller than a planet and a dwarf planet, larger than a meteoroid and not a comet, that orbits a star and often has an irregular shape.
- ASTHENIAWeakness; loss of strength.
- ASTHMAA long-term respiratory condition, in which the airways may unexpectedly and suddenly narrow, often in response to an allergen, cold air, exercise, or emotional stress. Symptoms in
- ASTIGMIAastigmatism
- ASTRAGALSynonym of anklebone: the bone forming the ball of the ankle joint.
- ASTRALRelating to or resembling the stars; starry.
- ASTRAPHOBESomeone suffering from astraphobia.
- ASTROBLEMEA pit-like structure created by an impacting meteoroid, asteroid or comet.
- ASTROIDA hypocycloid with four cusps.
- ASTROLABEAn astronomical and navigational instrument for gauging the altitude of the Sun and stars.
- ASTROLOGYDivination about human affairs or natural phenomena from the relative positions of celestial bodies.
- ASTRONOMICALOf or relating to astronomy.
- ASYLUMA place of safety or refuge.
- ASYMMETRICNot symmetric.
- ASYMPTOTEA straight line which a curve approaches arbitrarily closely as it goes to infinity. The limit of the curve; its tangent "at infinity".
- ATAXYataxia
- ATHEISMA non-belief in deities.
- ATHENAEUMAlternative form of Athenaeum: a temple primarily dedicated to Athena or her Roman equivalent Minerva.
- ATHEROMAAn abnormal fatty deposit which develops within the walls of arteries.
- ATHROCYTEA cell that ingests foreign particles
- ATIMIESpublic disgrace or stigma; outlawry; loss of civil rights
- ATLASA bound collection of maps often including tables, illustrations or other text.
- ATMOSPHEREThe gases surrounding the Earth or any astronomical body.
- ATOMThe smallest possible amount of matter which still retains its identity as a chemical element, now known to consist of a nucleus surrounded by electrons.
- ATONIALack of muscle tone.
- ATONYLack of muscle tone; flaccidity or atonia
- ATOPYA hereditary disorder marked by the tendency to develop localized immediate hypersensitivity reactions to allergens such as pollen, food etc and is manifested by hay fever, asthma,
- ATRESIAA condition in which a body orifice or passage in the body is abnormally closed or absent.
- ATROPHYA reduction in the functionality of an organ caused by disease, injury or lack of use.
- ATTICThe space, often unfinished and with sloped walls, directly below the roof in the uppermost part of a house or other building, generally used for storage or habitation.
- AULAA court or hall.
- AULICOf or pertaining to a royal court; courtly.
- AULOSAny of a class of ancient Greek musical instruments resembling pipes or flutes.
- AURAA subtle emanation or exhalation of any substance, such as an aroma or odour.
- AUSTEREGrim or severe in manner or appearance.
- AUSTERITYSeverity of manners or life; extreme rigor or strictness; harsh discipline.
- AUTACOIDA hormone or similar compound that has a short-term, local effect
- AUTHENTICOf the same origin as claimed; genuine.
- AUTHIGENICGenerated where it is found or observed.
- AUTISMAutism spectrum disorder, a condition characterized by impairment in social communication and interaction, as well as a need or strong preference for predictability and routine, se
- AUTOCEPHALOUSFully independent of the authority of any other church.
- AUTOCHTHONThe earliest inhabitant of an area; an indigenous person.
- AUTODIDACTA self-taught person.
- AUTOGRAPHA person’s own handwriting, especially the signature of a famous or admired person.
- AUTONOMYThe right or condition of self-government; freedom to act or function independently.
- AUTOPHANOUSProducing its own light.
- AUTOPSYA dissection performed on a cadaver to find possible cause(s) of death.
- AUTOPTICSeen with one's own eyes; belonging to, or connected with, personal observation.
- AUTOSOMEAny eukaryotic chromosome other than sex chromosomes.
- AUTOTELICContaining its own meaning or purpose; deriving meaning and purpose from within.
- AUTOTROPHAny organism that can synthesize its food from inorganic substances, using heat or light as a source of energy.
- AUXETICHaving the property of counterintuitively expanding when being stretched.
- AUXINA class of plant growth substance (often called phytohormones or plant hormones) which play an essential role in coordination of many growth and behavioral processes in the plant l
- AXINITEA borosilicate of aluminum, iron, and lime, commonly found in glassy, brown crystals with acute edges.
- AXIOLOGYThe study of value(s), as regards origin, nature, functions, types, and interrelations; value theory.
- AXIOMA seemingly self-evident or necessary truth which is based on assumption; a principle or proposition which cannot actually be proved or disproved.
- AXIOMATICSelf-evident or unquestionable.
- AXONA nerve fibre which is a long slender projection of a nerve cell, and which conducts nerve impulses away from the body of the cell to a synapse.
- AXONEMEA bundle of nine microtubules forming the internal scaffolding of a cilium, with two extra central microtubules connecting the others if the cilium is motile
- AZEOTROPEA mixture of two or more substances whose liquid and gaseous forms have the same composition (at a certain pressure); the substances cannot be separated by normal distillation.
- AZOTENitrogen.
- AZOTESNitrogen.
- AZYGOSIn anatomy, a structure that is unpaired. This is relatively unusual, as most elements of anatomy reflect bilateral symmetry.
- AZYMEUnleavened bread used in Jewish or Christian religious contexts.
- BACCHANTA priest of Bacchus.
- BACTERIAplural of bacterium
- BACTERIUMA single-celled organism with cell walls but no nucleus or organelles.
- BAETYLA meteorite or similar-looking rough stone thought to be of divine origin and worshipped as sacred.
- BALEENkeratinous material that makes up the plates in the mouth of the baleen whale (Mysticeti), which it uses to trap its food; formerly used in corsetry.
- BALLISTAAn ancient military engine, in the form of a crossbow, used for hurling large missiles.
- BALMAny of various aromatic resins exuded from certain plants, especially trees of the genus Commiphora of Africa, Arabia and India and Myroxylon of South America.
- BALNEARYA room for bathing.
- BALUSTERA short column used in a group to support a rail, as commonly found on the side of a stairway or around a balcony.
- BALUSTRADEA row of balusters topped by a rail, serving as an open parapet, as along the edge of a balcony, terrace, bridge, staircase, or the eaves of a building.
- BANAUSICOf or pertaining to technical matters; mechanical.
- BANDOREA historical stringed instrument similar in form to a guitar; a pandore.
- BANDURAA Ukrainian plucked stringed instrument with a tear-shaped body, like an asymmetrical lute or a vertical zither, which is played with both hands while held upright on the lap.
- BAPTISIAAny of various ornamental plants of the genus Baptisia.
- BAPTISMA Christian sacrament, by which one is received into a church and sometimes given a name, generally involving the candidate to be anointed with or submerged in water.
- BAPTISTRYA designated space within a church, or a separate room or building associated with a church, where a baptismal font is located, and consequently, where the sacrament of Christian b
- BAPTIZETo perform the sacrament of baptism by sprinkling or pouring water over someone or immersing them in water.
- BARGEA large flat-bottomed towed or self-propelled boat used mainly for river and canal transport of heavy goods or bulk cargo.
- BARIATRICReferring to the branch of medicine bariatrics, the treatment of obesity and weight problems.
- BARICOf or pertaining to weight, especially to the weight or pressure of the atmosphere as measured by a barometer.
- BARITEA mineral, barium sulphate, with the chemical formula BaSO4.
- BARITONEThe male voice between tenor and bass.
- BARNACLEA marine crustacean of the subclass Cirripedia that attaches itself to submerged surfaces such as tidal rocks or the bottoms of ships.
- BARQUEA sailing vessel of three or more masts, with all masts but the sternmost square-rigged, the sternmost being fore-and-aft-rigged
- BARYEA unit of pressure under the CGS system; symbol Ba; equal to 1 dyne per square centimeter. 1 Ba = 0.1 Pa = 0.1 N/m2 = 1x10 bar.
- BARYTAAny of several compounds of barium, especially barium sulphate and barium hydroxide.
- BARYTEAlternative form of barite.
- BARYTESBarite.
- BARYTONENot having an accent on the last syllable.
- BASALTA hard mafic igneous rock of varied mineral content; volcanic in origin, which makes up much of the Earth's oceanic crust.
- BASESomething from which other things extend; a foundation. A supporting, lower or bottom component of a structure or object.
- BASIDIUMA small structure, shaped like a club, found in the Basidiomycota division of fungi, that bears four spores at the tips of small projections.