Showing 401 to 500 of 50,018.
- ACROPETALLYIn an acropetal manner.
- ACROPHOBEA person who suffers from acrophobia, a fear of heights.
- ACROPHOBIAphobia or strong fear of being high above ground level
- ACROPHONYThe naming of letters in an alphabetic writing system using words whose initial sounds are represented by the respective letters.
- ACROPOLISA promontory (usually fortified with a citadel) forming the hub of many Grecian cities, and around which many were built for defensive purposes before and during the classical peri
- ACROSOMALOf or pertaining to acrosomes
- ACROSOMEA structure forming the end of the head of a spermatozoon.
- ACROTISMA lack or defect of the pulse.
- ACRYLAMIDEThe amide of acrylic acid, CH2=CH.CONH2; used in the manufacture of polyacrylamides.
- ACRYLATEAny salt or ester of acrylic acid.
- ACTABLEAble to be acted, as by an actor.
- ACTANTThat which acts; a source of action or activity.
- ACTINA globular structural protein that polymerizes in a helical fashion to form an actin filament (or microfilament).
- ACTINALPertaining to the side or surface around the mouth in an animal that has radial symmetry such as a starfish.
- ACTINALLYIn an actinal manner.
- ACTINGTemporarily assuming the duties or authority of another person when they are unable to do their job.
- ACTINIAA sea anemone, specifically a member of the genus Actinia.
- ACTINICRelated to radiation; used most often in reference to light, especially in the ultraviolet range.
- ACTINIDEAny of the 15 radioactive elements of the periodic table from actinium to lawrencium that are positioned under the lanthanides, to which they have similar chemistry.
- ACTINIFORMHaving a radiated form; ray-shaped.
- ACTINISM(chemistry, physics) That property of electromagnetic radiation that leads to the production of photochemical effects
- ACTINIUMA radioactive, metallic chemical element (symbol: Ac) with an atomic number of 89; found in uranium ores. An atom of this element.
- ACTINOIDactinide
- ACTINOLITEA mineral with monoclinic crystals of the chemical formula Ca2(Mg,Fe)5Si8O22(OH)2, belonging to the amphibole group.
- ACTINOMETERAn instrument used to measure the heating power of electromagnetic radiation, especially that of solar radiation.
- ACTINOMETRYthe measurement of the heating power of electromagnetic radiation, especially that of solar radiation
- ACTINOMORPHIESThe condition of being actinomorphic.
- ACTINOMORPHYThe condition of being actinomorphic.
- ACTINONRadon-219 (21986Rn; symbol An), an isotope of radon
- ACTIONThe effort of performing or doing something.
- ACTIONABLEAble to be acted on; able to be used as the basis for taking action.
- ACTIONABLYIn an actionable manner.
- ACTIONERAn action movie.
- ACTIVEHaving the power or quality of acting; causing change; communicating action or motion; acting;—opposed to passive, that receives.
- ACTIVELYIn an active manner.
- ACTIVISMThe practice of using action to achieve a result, such as political demonstration or a strike in support of or in opposition to an issue.
- ACTIVIZETo convert to activism.
- ACTORSomeone who institutes a legal suit; a plaintiff or complainant.
- ACTORISHOf, pertaining to, or characteristic of an actor or theatrical acting; like an actor.
- ACTORLYPertaining or proper to an actor.
- ACTUALrelating to a person's acts or deeds; active, practical
- ACTUALIZETo make real; to realize.
- ACTUALLYIn act or in fact; really; in truth; positively.
- ACTUARYRegistrar, clerk.
- ACTUATIONThe act of putting into motion.
- ACUITYSharpness or acuteness, as of a needle, wit, etc.
- ACULEATEHaving a sting; sharp like a prickle.
- ACULEUSA sharp spike or other projection growing on a plant, as in some brambles and roses.
- ACUMENQuickness of perception or discernment; penetration of mind; the faculty of nice discrimination; acuity of mind.
- ACUMINATETapering to a point; pointed.
- ACUMINOUSCharacterized by acumen; keen.
- ACUPOINTA specific point on the body where acupuncture or acupressure is applied.
- ACUSHLAdarling
- ACUTEBrief, quick, short.
- ACUTELYIn an acute manner
- ACUTENESSThe quality of being acute or pointed.
- ACYLAny of class of organic radicals, RCO-, formed by the removal of a hydroxyl group from a carboxylic acid.
- ACYLATETo add one or more acyl groups to a compound.
- ACYLATIONThe process of adding an acyl group to a compound.
- ADACTYLOUSWithout fingers or without toes.
- ADAGEAn old saying which has obtained credit by long use.
- ADAGIOA tempo mark directing that a passage is to be played rather slowly, leisurely and gracefully.
- ADAMSITEAn organic compound, diphenylaminechlorarsine, used as a riot-control agent.
- ADAPTTo make suitable; to make to correspond; to fit or suit.
- ADAPTEROne who is capable of adapting to differing situations.
- ADAPTIVEOf, pertaining to, characterized by or showing adaptation; making or made fit or suitable.
- ADAPTIVELYIn an adaptive manner; with adaptation; in a fitting manner
- ADAPTOGENAny natural herbal substance, such as ginseng, that is purported to assist the body to adapt to stress, and to exert a normalizing effect upon body functions.
- ADAPTOGENICBeing or relating to an adaptogen.
- ADAPTORAlternative spelling of adapter.
- ADAWTo daunt, overcome, subdue.
- ADAYSIn the daytime.
- ADDEEMTo adjudge; to try, test.
- ADDERAny snake.
- ADDICTA person who is addicted, especially to a harmful drug.
- ADDUCETo bring forward or offer, as an argument, passage, or consideration which bears on a statement or case.
- ADDUCEROne who adduces.
- ADDUCTTo draw towards a center or a middle line.
- ADDUCTIONThe act of adducing or bringing forward.
- ADEEMTo revoke (a legacy, grant, etc.) or to satisfy it by some other gift.
- ADEMPTIONIn the law of wills, the determination of what happens when property left under a will is no longer in the testator's estate when the testator dies.
- ADENECTOMYThe removal of all or part of the adenoid glands by surgery.
- ADENITISGlandular inflammation.
- ADENOMAA benign tumour of the epithelium arising from or resembling a gland.
- ADENOMATOUSOf or pertaining to adenoma
- ADENOPATHYSwelling or enlargement of the glands (especially the lymph nodes); any glandular disease.
- ADENOVIRALOf, pertaining to, or caused by an adenovirus
- ADENOVIRUSAny virus of the family Adenoviridae, many of which are responsible for respiratory infections in humans
- ADENYLICOf or pertaining to adenylic acid or its derivatives
- ADEPTWell skilled; completely versed; thoroughly proficient.
- ADEPTLYWith great skill or knowledge.
- ADEQUACYThe quality of being sufficient, adequate or able to meet the needs.
- ADEQUATEEqual to or fulfilling some requirement.
- ADEQUATELYIn an adequate manner.
- ADEQUATIVEequivalent or sufficient; adequate.
- ADESPOTALiterary works not attributed to (or claimed by) an author.
- ADHANThe call to prayer, usually recited by a muezzin before each of the five obligatory daily prayers.
- ADHERETo stick fast or cleave, as a glutinous substance does; to become joined or united.
- ADHERENTAdhesive, sticking to something.
- ADHERENTLYIn an adherent manner.