10-letter words containing d, o, p, a
- quadcopter — A rotorcraft propelled by four rotors.
- quadripole — an electric circuit with two input and two output terminals
- quadrupole — a set of four associated positive and negative electric charges or two associated magnetic dipoles
- radarscope — the viewing screen of radar equipment.
- radio play — a play written for broadcasting on radio
- radiograph — Also called shadowgraph. a photographic image produced by the action of x-rays or nuclear radiation.
- radiopager — a small radio receiver fitted with a buzzer to alert a person to telephone their home, office, etc, to receive a message
- radiopaque — opaque to radiation; visible in x-ray photographs and under fluoroscopy (opposed to radiotransparent).
- radiophare — a radiotelegraphic station used by vessels to determine their positions; radio beacon.
- radiophone — a radiotelephone.
- radiophoto — an image created by radio waves rather than light
- radioscope — an instrument, such as a fluoroscope, capable of detecting radiant energy
- radioscopy — the examination of objects opaque to light by means of another form of radiation, usually x-rays.
- read up on — If you read up on a subject, you read a lot about it so that you become informed about it.
- readoption — the adoption of something or someone again
- reproached — to find fault with (a person, group, etc.); blame; censure.
- rhapsodist — a person who rhapsodizes.
- rhapsodize — to talk with extravagant enthusiasm.
- rhodophane — the red colour found in the inner cones of the retina in animals
- rhodoplast — a plastid found in red algae, containing red pigment as well as chlorophyll
- road apple — a piece of horse manure on or at the side of a road.
- ropedancer — a person who walks across or performs acrobatics upon a rope stretched at some height above the floor or ground.
- rose aphid — a dark green aphid, Macrosiphum rosae, that feeds on roses and related plants.
- round tape — (storage, jargon) Industry-standard 1/2-inch magnetic tape (7- or 9-track) on traditional circular reels. See macrotape, opposite: square tape.
- sandgroper — a nickname for a Western Australian
- sappanwood — a dyewood yielding a red color, produced by a small, East Indian tree, Caesalpinia sappan, of the legume family.
- scorpaenid — belonging or pertaining to the Scorpaenidae, a family of marine fishes with spiny fins, including the rockfishes, scorpionfishes, and lionfishes.
- scrapegood — a stingy person; a miser
- senna pods — the dried fruits of any of these plants, used as a cathartic and laxative
- shadow pin — a vertical pin set in an azimuth instrument or at the center of a compass card, indicating by the direction of its shadow the azimuth of the sun.
- snapdragon — any plant belonging to the genus Antirrhinum, of the figwort family, especially A. majus, cultivated for its spikes of showy flowers, each having a corolla supposed to resemble the mouth of a dragon.
- snowcapped — topped with snow: the snowcapped Alps.
- soft-pedal — to use the soft pedal.
- solar pond — a pool with a bottom layer of salt water and top layer of fresh water, designed to capture solar radiation as a source of energy for generating heat or electricity.
- soundscape — the component sounds of an environment.
- spaced out — dazed or stupefied because of the influence of narcotic drugs.
- spaced-out — dazed or stupefied because of the influence of narcotic drugs.
- spade foot — a square foot, tapering toward its bottom.
- spadiceous — Botany. of the nature of a spadix. bearing a spadix.
- spasmodist — a person who is spasmodic, especially in style, as a writer, painter, etc.
- spatangoid — a type of sea urchin
- spermatoid — resembling sperm.
- sphenoidal — relating to the sphenoid bone
- spheroidal — pertaining to a spheroid or spheroids.
- splashdown — the landing of a space vehicle in a body of water, especially the ocean.
- spodomancy — divination by studying ashes
- spondaical — composed of spondees
- sporadical — (of similar things or occurrences) appearing or happening at irregular intervals in time; occasional: sporadic renewals of enthusiasm.
- sporicidal — a substance or preparation for killing spores.
- sports day — In British schools, sports day is a day or an afternoon when pupils compete in athletics contests such as races and the high jump. Parents are often invited to come and watch the events.