12-letter words containing o, p, e, d, a
- pachydermous — any of the thick-skinned, nonruminant ungulates, as the elephant, hippopotamus, and rhinoceros.
- packed tower — A packed tower is a tall distillation vessel which uses packing.
- packet radio — (communications, radio) The use of packet switched communications protocols in large networks (i.e not wireless LANs or Bluetooth) having wireless links to terminals at least. Packet radio is split into amateur packet radio (AX25) and General Packet Radio Service (GRPS).
- paedobaptism — the baptism of infants
- paedobaptist — a person who baptizes infants
- paedodontics — the branch of dentistry that focuses on the care of children's teeth
- paedogenesis — sexual reproduction in an animal that retains its larval features
- paedomorphic — showing signs of paedomorphism
- paedophiliac — an adult who is sexually attracted to young children.
- paleo-indian — of, relating to, or characteristic of a New World cultural stage, c22,000–6000 b.c., distinguished by fluted-point tools and cooperative hunting methods.
- pandanaceous — of, relating to, or belonging to the Pandanaceae, an Old World tropical family of monocotyledonous plants including the screw pines
- panel doctor — a doctor within a given area available for consultation by patients insured under the National Health Insurance Scheme
- parade armor — ornamented armor worn only for ceremonial purposes.
- paradoxurine — relating to the palm civet
- parahydrogen — the form of molecular hydrogen in which the nuclei of the two hydrogen atoms contained in the molecule have spins in opposite directions.
- parasphenoid — a bone next to the sphenoid bone in the skull of some animals
- parole board — panel who evaluate prisoners for release
- particolored — having different colors in different areas or patches; variegated: a parti-colored dress.
- pas de trois — a dance for three dancers.
- payment bond — See under contract bond.
- peabody bird — the white-throated sparrow.
- peace accord — an official agreement to come to peace or end conflict
- peau de soie — a soft, satin-weave cloth of silk or rayon, grainy and having a dull luster, used to make dresses, coats, trimmings, etc.
- peccadilloes — a very minor or slight sin or offense; a trifling fault.
- pedantocracy — rule by pedants; a system of government by pedants
- pediculation — the act or process of growing a stalk or pedicle
- pentacrinoid — a larval crinoid resembling members of the genus Pentacrinus
- pentadecagon — a polygon having 15 angles and 15 sides.
- pentahydroxy — (of a molecule) containing five hydroxyl groups.
- perez galdos — Benito [buh-nee-toh;; Spanish be-nee-taw] /bəˈni toʊ;; Spanish bɛˈni tɔ/ (Show IPA), 1843–1920, Spanish journalist, dramatist, and novelist.
- period drama — a drama set in a particular historical period
- periodic law — the law that the properties of the elements are periodic functions of their atomic numbers.
- periodically — recurring at intervals of time: periodic revivals of an interest in handicrafts.
- peroxidation — a type of reaction in which oxygen atoms are formed leading to the production of peroxides. It is stimulated in the body by certain toxins and infections
- personalised — to have marked with one's initials, name, or monogram: to personalize stationery.
- personalized — customized
- petrodollars — Petrodollars are a unit of money used to calculate how much a country has earned by exporting petroleum or natural gas.
- petrozavodsk — a city in NW Russia, capital of the Karelian Autonomous Republic, on Lake Onega: developed around ironworks established by Peter the Great in 1703; university (1940). Pop: 265 000 (2005 est)
- photo spread — a picture spread. See under spread (def 33).
- photo-stated — a camera for making facsimile copies of documents, drawings, etc., in the form of paper negatives on which the positions of lines, objects, etc., in the originals are maintained.
- photocathode — a cathode, typically of a cesium or sodium compound, having the property of emitting electrons when activated by light or other radiation.
- phytonadione — vitamin K1.
- pidyon haben — the rite of relieving the first male child born to parents not descended from Aaron or Levi of certain religious obligations by redeeming him from a member of the priestly class, celebrated 30 days after the child's birth.
- pilot ladder — Jacob's ladder (def 2a).
- pindaric ode — an ode consisting of several units, each of which is composed of a strophe and an antistrophe of identical form followed by a contrasting epode.
- pirate radio — radio broadcasting illegally
- place-holder — Mathematics, Logic. a symbol in an expression that may be replaced by the name of any element of the set.
- plagiohedral — (of a crystal) having faces arranged obliquely in a helix.
- plasterboard — a material used for insulating or covering walls, or as a lath, consisting of paper-covered sheets of gypsum and felt.
- platform bed — a bed, originating in Scandinavia in the 1930s, consisting of a simple shallow box for holding a mattress situated on a slightly recessed pedestal.