13-letter words containing p, y, o, r
- bronchography — radiography of the bronchial tubes after the introduction of a radiopaque medium into the bronchi
- brook lamprey — a jawless fish, Lampetra planeri, native to the European part of the Atlantic Ocean and the northwest Mediterranean
- brooklyn park — city in SE Minn.: suburb of Minneapolis: pop. 67,000
- butyrophenone — a drug used to treat psychiatric disorders
- butyryl group — the univalent group C 4 H 7 O–.
- by reputation — If you know someone by reputation, you have never met them but you have heard of their reputation.
- byte compiler — byte-code compiler
- cacodyl group — the univalent group (CH 3) 2 As−, derived from arsine.
- camp fire boy — a boy who is a member of the Campfire Boys and Girls. Compare Camp Fire Girl.
- campylobacter — a rod-shaped bacterium that causes infections in cattle and man. Unpasteurized milk infected with campylobacter is a common cause of gastroenteritis
- caryophyllene — (organic compound) A sesquiterpene (containing a cyclobutane ring) found in the essential oils of several plants such as clove and pepper.
- cathodography — the process or practice of taking photographs using cathode rays
- cervicography — a method of cervical screening in which the neck of the uterus is photographed to facilitate the early detection of cancer
- child prodigy — A child prodigy is a child with a very great talent.
- chlamydospore — a thick-walled asexual spore of many fungi: capable of surviving adverse conditions
- chlorophyll-b — the green coloring matter of leaves and plants, essential to the production of carbohydrates by photosynthesis, and occurring in a bluish-black form, C 55 H 72 MgN 4 O 5 (chlorophyll a) and a dark-green form, C 55 H 70 MgN 4 O 6 (chlorophyll b)
- chromotherapy — the use of colour and light as a restorative therapy and to promote mental and physical well-being
- chronotherapy — an endeavour to readjust the body clock to enable a person to waken earlier by going to sleep later and later every day until the required waking hour is achieved
- chrysocarpous — bearing golden-yellow fruit.
- chrysophenine — a bright yellow dye derived from stilbene, used chiefly for dyeing leather and textiles.
- chrysophilite — a person who loves gold
- chrysotherapy — gold therapy.
- climatography — an account of a region's climate
- clinopyroxene — a member of the pyroxene group of minerals having a monoclinic crystal structure, such as augite, diopside, or jadeite
- co-presidency — the state or act of being co-president
- common prayer — the liturgy of public services of the Church of England, esp Morning and Evening Prayer
- company grade — military rank applying to army officers below major, as second and first lieutenants and captains.
- company store — a retail store operated by a company for the convenience of the employees, who are required to buy from the store.
- comparability — capable of being compared; having features in common with something else to permit or suggest comparison: He considered the Roman and British empires to be comparable.
- comparatively — in a comparative manner
- complementary — Complementary things are different from each other but make a good combination.
- complexometry — a chemical technique using the formation of a colored complex to indicate the end of a titration.
- complimentary — If you are complimentary about something, you express admiration for it.
- concert party — a musical entertainment popular in the early 20th century, esp one at a British seaside resort
- coniferophyte — (biology) conifer.
- cooperatively — working or acting together willingly for a common purpose or benefit.
- cooperativity — an interaction between structural units within a molecule or between molecules in an assemblage that enables the system to respond more sharply to an external change than would isolated units
- copolymerized — Polymerized, along with another compound, to form a copolymer.
- copyrightable — the exclusive right to make copies, license, and otherwise exploit a literary, musical, or artistic work, whether printed, audio, video, etc.: works granted such right by law on or after January 1, 1978, are protected for the lifetime of the author or creator and for a period of 70 years after his or her death.
- cornish pasty — A Cornish pasty is a small pie with meat and vegetables inside.
- costume party — A costume party or costume ball is a party at which the guests try to look like famous people or people from history, from stories, or from particular professions.
- cotemporality — The state or characteristic of existing or occurring during the same period of time.
- counterplayer — a person who makes a counterplay
- counterspying — the activities of a counterspy
- countrypeople — countryfolk.
- countryperson — Someone who is from a countryside background.
- county prison — the prison of a particular county
- crop spraying — the spraying of crops with insecticide, fungicide, etc
- cryotherapies — Plural form of cryotherapy.
- cryptoanalyst — Alternative form of cryptanalyst.