13-letter words containing a, p, r, i, o
- court packing — an unsuccessful attempt by President Franklin D. Roosevelt in 1937 to appoint up to six additional justices to the Supreme Court, which had invalidated a number of his New Deal laws.
- cranioscopist — a practitioner of cranioscopy
- crop rotation — the system of growing a sequence of different crops on the same ground so as to maintain or increase its fertility
- crop spraying — the spraying of crops with insecticide, fungicide, etc
- cryotherapies — Plural form of cryotherapy.
- cryptoclastic — (of minerals and rocks) composed of microscopic fragments
- cryptoclimate — the climate of a small area, as of confined spaces such as caves or houses (cryptoclimate) of plant communities, wooded areas, etc. (phytoclimate) or of urban communities, which may be different from that in the general region.
- cryptographic — Relating to cryptography.
- cryptological — cryptography.
- cryptoxanthin — a carotenoid pigment, C40H56O, in butter, eggs, and various plants, that can be converted into vitamin A in the body
- cupid's arrow — one of the arrows that Cupid is supposed to fire from his bow, which cause the person struck to fall in love
- cuprotitanium — (metallurgy) An alloy of copper and titanium obtained by reducing a mixture of copper and rutile.
- cycloparaffin — any of a series of saturated alicyclic hydrocarbons of the general formula CnH2n, having a closed chain of three or more carbon atoms, as cyclohexane
- dairy produce — food derived from or containing milk and its derivatives
- decrepitation — to roast or calcine (salt, minerals, etc.) so as to cause crackling or until crackling ceases.
- demographical — of or relating to demography, the science of vital and social statistics.
- depersonalise — Alternative spelling of depersonalize.
- depersonalize — To depersonalize a system or a situation means to treat it as if it did not really involve people, or to treat it as if the people involved were not really important.
- deprecatorily — In a deprecatory manner.
- depreciations — Plural form of depreciation.
- deprotonation — (chemistry) The removal of a proton (hydrogen ion) from a molecule to form a conjugate base.
- dermatotropic — (especially of viruses) in, attracted toward, or affecting the skin.
- dermographism — dermatographia.
- diageotropism — a diatropic response of plant parts, such as rhizomes, to the stimulus of gravity
- diaphanometer — an instrument used to measure transparency, esp of the atmosphere
- diaphoretical — Alternative form of diaphoretic.
- diaphototropy — the state of being diaphototropic, turning transversely to the light
- diazo process — a method for printing on paper treated with a diazo compound that disintegrates upon exposure to light and developing the unexposed areas by the use of diazo dyes.
- dictatorships — Plural form of dictatorship.
- diprotic acid — any acid with two hydrogen atoms in its molecule that are capable of being released or ionized in water, such as sulphuric acid and carbonic acid
- discographies — Plural form of discography.
- disreputation — disrepute.
- dolphinariums — Plural form of dolphinarium.
- drape forming — thermoforming of plastic sheeting over an open mold by a combination of gravity and a vacuum.
- drop a stitch — to allow a loop of wool to fall off a knitting needle accidentally while knitting
- dropped waist — the waistline of a dress, gown, or the like when it is placed at the hips rather than at the natural waist.
- durban poison — a particularly potent variety of cannabis grown in Natal
- earning power — business: ability to profit
- eavesdropping — to listen secretly to a private conversation.
- ectoparasites — Plural form of ectoparasite.
- ectoparasitic — Of or pertaining to ectoparasites.
- enantiomorphs — Plural form of enantiomorph.
- enantiomorphy — the state of being enantiomorphic
- enantiotropic — relating to enantiotropy
- endoparasites — Plural form of endoparasite.
- endoparasitic — Of or pertaining to endoparasites.
- enterohepatic — Relating to or denoting the circulation of bile salts and other secretions from the liver to the intestine, where they are reabsorbed into the blood and returned to the liver.
- enteropathies — Plural form of enteropathy.
- epitrachelion — The liturgical vestment worn by priests and bishops of the Orthodox Church as the symbol of their priesthood, corresponding to the Western stole.
- epitrochoidal — Being or relating to an epitrochoid.