| ADHOCRACY | • adhocracy n. (Business, organizational theory) An organizational system designed to be flexible and responsive to… • ad-hocracy n. Alternative form of adhocracy. • ad␣hocracy n. Alternative form of adhocracy. |
| ADIAPHORA | • adiaphora n. Plural of adiaphoron. • adiaphora n. (Nonstandard, uncommon) in singular use. • ADIAPHORON n. a tenet or belief on which a theological system is indifferent. |
| AFOREHAND | • aforehand adv. (Archaic or dialect) Beforehand; in advance; in anticipation. • aforehand adj. Beforehand in condition; forehanded. • AFOREHAND adv. beforehand. |
| ARACHNOID | • arachnoid adj. Relating to or resembling spider webs; covered with or composed of soft loose hairs or fibers. • arachnoid adj. (Anatomy) Relating to the arachnoid mater. • arachnoid n. (Neuroanatomy) Ellipsis of arachnoid mater.. |
| ARROWHEAD | • arrowhead n. (Weaponry) The pointed part of an arrow. • arrowhead n. (Symbol) The pointed part of an arrow. • arrowhead n. Any plant in the genus Sagittaria. |
| ARTHRODIA | • arthrodia n. (Anatomy) A form of diarthrodial articulation in which the articular surfaces are nearly flat, so that… • ARTHRODIA n. in zoology, a joint. |
| BIOHAZARD | • biohazard n. A biological hazard; a source of risk due to some biological factor such as bacteria or human waste. • BIOHAZARD n. a danger of disease or pollution from living organisms. |
| DASHBOARD | • dashboard n. A panel beneath the windshield of a vehicle or aircraft containing indicator gauges, compartments, and… • dashboard n. (Historical) An upturned screen of wood or leather placed on the front of a horse-drawn carriage, sleigh… • dashboard n. (Graphical user interface, video games) A graphical user interface in the form of or resembling a motor car dashboard. |
| DIARRHOEA | • diarrhoea n. British form standard spelling of diarrhea. • diarrhœa n. (Chiefly British spelling) Archaic spelling of diarrhea. • DIARRHOEA n. a persistent purging or looseness of the bowels, also DIARRHEA. |
| HADROSAUR | • hadrosaur n. (Paleontology) Any ornithopod dinosaur of the family Hadrosauridae. • HADROSAUR n. a bird-hipped dinosaur of the Cretaceous. |
| HARDBOARD | • hardboard n. A high-density chipboard. • HARDBOARD n. compressed board made from wood fibre. |
| HAZARDOUS | • hazardous adj. Risky; dangerous; with the nature of a hazard. • hazardous adj. Of or involving chance. • HAZARDOUS adj. dangerous. |
| HEADBOARD | • headboard n. A vertical panel, either plain or upholstered, attached to the head of a bed. • headboard n. (Nautical) A panel, usually of metal, attached to the head of a fore-and-aft sail for additional strength. • headboard n. (Rail transport) A board on the front of a train, carrying the train’s name or that of the service it is on. |
| HOARHEADS | • hoarheads n. Plural of hoarhead. • HOARHEAD n. a hoary-headed old man. |
| HYDROMATA | • HYDROMA n. a watery swelling over a joint, e.g. water on the knee, also HYGROMA. |
| OCTAHEDRA | • octahedra n. Plural of octahedron. • OCTAHEDRON n. (Greek) a solid bounded by eight plane faces, also OCTOHEDRON. |
| RHABDOMAL | • rhabdomal adj. Relating to a rhabdom. • RHABDOMAL adj. of or like a rhabdom, a fourfold rod in the compound eye of an arthropod. |
| RHODANATE | • rhodanate n. (Chemistry, obsolete) A salt of rhodanic acid; a sulphocyanate. • RHODANATE n. in dyeing, a thiocyanate. |
| WASHBOARD | • washboard n. A board with a corrugated surface against which laundry may be rubbed. • washboard n. (Music) Such a board used as a simple percussion instrument. • washboard n. (Nautical) A board fastened along a ship’s gunwale to prevent splashing; a splashboard. |