16-letter words containing dr
- driver education — a course of study, as for high-school students, that teaches the techniques of driving a vehicle, along with basic vehicle maintenance, safety precautions, and traffic regulations and laws.
- driver's license — a permit, as one issued by a state's motor vehicle bureau, that allows the holder to drive a motor vehicle on public roads.
- drogue parachute — Also called drogue. a small parachute that deploys first in order to pull a larger parachute from its pack.
- drop (down) dead — If you say that a person or animal dropped dead or dropped down dead, you mean that they died very suddenly and unexpectedly.
- drop a bombshell — If someone drops a bombshell, they give you a sudden piece of bad or unexpected news.
- droves of people — large numbers of people
- drug trafficking — smuggling illegal drugs
- drugstore cowboy — a young man who loafs around drugstores or on street corners.
- drumhead cabbage — acommon type of cabbage with tightly packed leaves and a rounded form with a slightly flattened top
- drumhead service — a religious service attended by members of a military unit while in the field
- drunkard's chair — a low, deep armchair of the 18th century.
- dry distillation — destructive distillation.
- dry-cell battery — a dry battery
- ducks and drakes — Also, duck and drake. a pastime in which flat stones or shells are thrown across water so as to skip over the surface several times before sinking.
- electrohydraulic — Relating to electrohydraulics.
- ethernet address — (networking) (Or "MAC address") The physical address identifying an individual Ethernet controller board. An Ethernet addess is a 48-bit number aabbccddeeff where a-f are hexadecimal digits. The first 24 bits, aabbcc, identify the manufacturer of the controller. The Ethernet address is hard-wired on some controllers, stored in a ROM on some, and others allow it to be changed from software. It is usually written as six hexadecimal numbers, e.g. 08:00:20:03:72:DC. See also ARP, Internet address.
- false beechdrops — either of two parasitic or saprophytic plants of the genus Monotropa, especially the tawny or reddish M. hypopithys (false beechdrops) of eastern North America.
- false dragonhead — a North American plant, Physostegia virginiana, of the mint family, having a spike of tubular, two-lipped, pink or white flowers.
- fancy dress ball — a ball at which the guests wear fancy dress
- farewell address — (initial capital letters) U.S. History. a statement that President George Washington published in a Philadelphia newspaper in 1796 to announce that he would not run for a third term and to give his views on foreign and domestic policy.
- feel the draught — to be short of money
- four-wheel drive — a drive system in which engine power is transmitted to all four wheels for improved traction.
- freezing drizzle — drizzle that falls as a liquid but freezes into glaze or rime upon contact with the ground.
- friedrich engels — Friedrich [free-drikh] /ˈfri drɪx/ (Show IPA), 1820–95, German socialist in England: collaborated with Karl Marx in systematizing Marxism.
- friedrich wohler — Friedrich [free-drikh] /ˈfri drɪx/ (Show IPA), 1800–82, German chemist.
- gynandromorphism — an individual exhibiting morphological characteristics of both sexes.
- gynandromorphous — an individual exhibiting morphological characteristics of both sexes.
- hamadryas baboon — a baboon, Papio (Comopithecus) hamadryas, of Ethiopia, the male of which has a mantle of long, dark hair about the head and shoulders: held sacred by the ancient Egyptians.
- hanging wardrobe — a wardrobe containing a rail with a large amount of space underneath, so that clothes can be hung on hangers placed onto the rail
- hardrock geology — (loosely) of or relating to igneous or metamorphic rocks, as in mining (hard-rock mining) and geology (hard-rock geology)
- have the drop on — a small quantity of liquid that falls or is produced in a more or less spherical mass; a liquid globule.
- heteropalindrome — Something that spells something else when reversed, a semordnilap.
- hexahydroaniline — cyclohexylamine.
- hexahydrobenzene — cyclohexane.
- hundred-year-old — of one hundred years of age
- hydrated alumina — a crystalline, water-insoluble powder, Al(OH) 3 or Al 2 O 3 ⋅3H 2 O, obtained chiefly from bauxite: used in the manufacture of glass, ceramics, and printing inks, in dyeing, and in medicine as an antacid and in the treatment of ulcers.
- hydration number — the number of molecules of water with which an ion can combine in an aqueous solution of given concentration.
- hydraulic cement — cement that can solidify under water.
- hydraulic mining — placer mining using a pressurized stream of water.
- hydraulic radius — the ratio of the cross-sectional area to the perimeter of a pipe, outlet, or the like, through which a fluid is flowing.
- hydrobromic acid — a colorless or faintly yellow corrosive liquid, HBr, an aqueous solution of hydrogen bromide.
- hydrocyanic acid — a colorless, highly poisonous liquid, HCN, an aqueous solution of hydrogen cyanide.
- hydroelectricity — pertaining to the generation and distribution of electricity derived from the energy of falling water or any other hydraulic source.
- hydroferricyanic — (chemistry) Pertaining to, or containing, or obtained from, hydrogen, ferric iron, and cyanogen.
- hydroformylation — the addition of a hydrogen atom and the formyl group to a double bond of a hydrocarbon by reaction with a mixture of carbon monoxide and hydrogen in the presence of a catalyst.
- hydrogen bromide — a colorless gas, HBr, having a pungent odor: the anhydride of hydrobromic acid.
- hydrogen cyanide — a colorless poisonous gas, HCN, having a bitter almondlike odor: in aqueous solution it forms hydrocyanic acid.
- hydrogen sulfide — a colorless, flammable, water-soluble, cumulatively poisonous gas, H 2 S, having the odor of rotten eggs: used chiefly in the manufacture of chemicals, in metallurgy, and as a reagent in laboratory analysis.
- hydrologic cycle — the natural sequence through which water passes into the atmosphere as water vapor, precipitates to earth in liquid or solid form, and ultimately returns to the atmosphere through evaporation.
- hydrometeorology — the study of atmospheric water, especially precipitation, as it affects agriculture, water supply, flood control, power generation, etc.