15-letter words containing o, r, c, h, a
- pistachio green — a light or medium shade of yellow green.
- pithecanthropus — a former genus of extinct hominids whose members have now been assigned to the proposed species Homo erectus.
- pleochroic halo — a dark-colored, microscopic ring around a minute radioactive particle in certain mineral crystals, used in estimating the age of the rocks containing these crystals
- polychlorinated — having multiple chlorine atoms
- polymorphically — in a polymorphic manner
- posthemorrhagic — occurring after a haemorrhage
- power macintosh — Power Mac
- process heating — Process heating is heating, usually from steam, which is used to increase the temperature in a process vessel.
- progress chaser — a person employed to make sure at each stage, esp of a manufacturing process, that a piece of work is on schedule and is delivered to the customer on time
- proscenium arch — the arch separating the stage from the auditorium
- psychobiography — a biographical study focusing on psychological factors, as childhood traumas and unconscious motives.
- psychogeriatric — the psychology of old age.
- psychographical — relating to psychographics
- psychohistorian — a person who writes psychohistory
- psychotherapist — the treatment of psychological disorders or maladjustments by a professional technique, as psychoanalysis, group therapy, or behavioral therapy.
- puerto ayacucho — a city in S Venezuela, on the Orinoco River.
- pulmobranchiate — possessing a pulmobranch
- pyrotechnically — in a pyrotechnical manner
- quasihistorical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
- quiche lorraine — a quiche containing bits of bacon or ham and often cheese.
- radiochemically — by radiochemical means or methods; from a radiochemical perspective
- radiotechnology — the technical application of any form of radiation to industry.
- raw-pack method — cold pack (def 2).
- reorchestration — a renewed or second orchestration of a piece of music, the act of reorchestrating
- research fellow — A research fellow is a member of an academic institution whose job is to do research.
- research worker — investigative scientist
- reservoir patch — A reservoir patch is an adhesive patch enclosing an amount of medicine. The patch is applied to the skin, and the medicine in it is delivered through a membrane into the skin and into the bloodstream.
- rhombencephalon — the hindbrain.
- right ascension — the arc of the celestial equator measured eastward from the vernal equinox to the foot of the great circle passing through the celestial poles and a given point on the celestial sphere, expressed in degrees or hours.
- right of search — the privilege of a nation at war to search neutral ships on the high seas for contraband or other matter, carried in violation of neutrality, that may subject the ship to seizure.
- rightabout-face — a turning directly about so as to face in the opposite direction
- robe-de-chambre — a dressing gown.
- rocket launcher — a tube attached to a weapon for the launching of rockets.
- rocket research — research into rocket engines for spacecraft
- root and branch — a part of the body of a plant that develops, typically, from the radicle and grows downward into the soil, anchoring the plant and absorbing nutriment and moisture.
- root-and-branch — a part of the body of a plant that develops, typically, from the radicle and grows downward into the soil, anchoring the plant and absorbing nutriment and moisture.
- round character — a character in fiction whose personality, background, motives, and other features are fully delineated by the author.
- rubbing alcohol — a poisonous solution of about 70 percent isopropyl or denatured ethyl alcohol, usually containing a perfume oil, used chiefly in massaging.
- saccharomycetes — a collective name for yeasts
- sacred mushroom — any of various hallucinogenic mushrooms, esp species of Psilocybe and Amanita, that have been eaten in rituals in various parts of the world
- sailor's choice — any of various small percoid fishes of American coastal regions of the Atlantic, esp the grunt Haemulon parra and the pinfish
- sailor's-choice — any of several fishes living in waters along the Atlantic coast of the U.S., especially a pinfish, Lagodon rhomboides, ranging from Massachusetts to Texas, and a grunt, Haemulon parrai, ranging from Florida to Brazil.
- sandwich course — A sandwich course is an educational course in which you have periods of study between periods of being at work.
- saprophytically — any organism that lives on dead organic matter, as certain fungi and bacteria.
- sarcenchymatous — relating to the connective tissue of some sponges
- scared to death — terrified
- scatter cushion — Scatter cushions are small cushions for use on sofas and chairs.
- schillerization — the process of altering crystals to produce schiller
- schola cantorum — an ecclesiastical choir or choir school.
- schopenhauerian — Arthur [ahr-too r] /ˈɑr tʊər/ (Show IPA), 1788–1860, German philosopher.