12-letter words containing p, r, o, n
- counterscarp — the outer side of the ditch of a fort
- counterspell — a spell or charm which acts against another spell, esp in fantasy or role-playing games
- counterspies — Plural form of counterspy.
- counterstamp — a stamp added to a stamped paper or document as a qualifying mark.
- countertypes — Plural form of countertype.
- country park — an area of countryside, usually not less than 10 hectares, set aside for public recreation: often funded by a Countryside Commission grant
- craftsperson — an artisan
- craniography — examination of the skull as depicted by craniographs, photographs, and charts.
- cranioplasty — Surgical repair of a defect or deformity in the skull.
- criosphinxes — Plural form of criosphinx.
- crop dusting — Crop dusting is the spreading of pesticides on crops, usually from an aircraft.
- crop-dusting — the spraying of powdered fungicides or insecticides on crops, usually from an airplane.
- crospovidone — Crospovidone is a substance used in tablets as a binder or disintegrant.
- cross potent — a cross with equal arms, each of which ends in a bar
- crossposting — Present participle of crosspost.
- crown canopy — canopy (def 4).
- crown prince — A Crown Prince is a prince who will be king of his country when the present king or queen dies.
- cryoplankton — minute organisms, esp algae, living in ice, snow, or icy water
- cryptogamian — of or relating to cryptogams
- cryptomnesia — the reappearance of a suppressed or forgotten memory which is mistaken for a new experience
- cryptomnesic — of, relating to, or characterized by cryptomnesia
- cryptomonads — Plural form of cryptomonad.
- cryptonymous — having a code name or secret name
- cuprammonium — an ion of copper oxide used (in solution) in the manufacture of rayon and other man-made fibres
- curtain pole — a pole from which a curtain is hung in front of a window, door, etc
- cyclopropane — a colourless flammable gaseous hydrocarbon, used in medicine as an anaesthetic; trimethylene. It is a cycloalkane with molecules containing rings of three carbon atoms. Formula: C3H6; boiling pt: –34°C
- cyclosporine — a drug, produced by a fungus (Tolypocladium inflatum), that suppresses the T cells that reject foreign tissue after an organ transplant without suppressing other cells that fight infections and cancer
- cyprinodonts — Plural form of cyprinodont.
- d'anjou pear — Anjou pear
- danger point — the point at which something ceases to be safe
- daphnephoria — an ancient Greek festival in honor of Apollo.
- de profundis — out of the depths of misery or dejection
- deaspiration — the act of deaspirating
- demonography — a treatise on demons.
- deportations — Plural form of deportation.
- depreciation — the reduction in value of a fixed asset due to use, obsolescence, etc
- depredations — the act of preying upon or plundering; robbery; ravage.
- deprivations — Plural form of deprivation.
- deprotonated — Simple past tense and past participle of deprotonate.
- derepression — the act of derepressing a gene
- descriptions — a statement, picture in words, or account that describes; descriptive representation.
- dessertspoon — A dessertspoon is a spoon which is midway between the size of a teaspoon and a tablespoon. You use it to eat desserts.
- deuteranopia — a form of colour blindness in which there is a tendency to confuse blues and greens, and greens and reds, and in which sensitivity to green is reduced
- dictyopteran — any insect of the order Dictyoptera, which comprises the cockroaches and mantises
- dinosaur pen — A traditional mainframe computer room complete with raised flooring, special power, its own ultra-heavy-duty air conditioning, and a side order of Halon fire extinguishers. See boa.
- diprionidian — (of a graptolite) with a row of cellules or serrations on both sides
- dipropellant — bipropellant.
- disapproving — Expressing an unfavorable opinion.
- disoperation — a relationship between two organisms in a community that is harmful to both
- dispensatory — a book in which the composition, preparation, and uses of medicinal substances are described; a nonofficial pharmacopoeia.