12-letter words containing a, c, e, l, r, n
- pearlescence — a pearly lustre or sheen
- pectoral fin — (in fishes) either of a pair of fins usually situated behind the head, one on each side, and corresponding to the forelimbs of higher vertebrates.
- pelecaniform — of, or having the nature of, an order (Pelecaniformes) of swimming birds having all four toes connected in a webbed foot, including pelicans and cormorants
- pencil cedar — the red cedar, Juniperus virginiana, or its wood.
- perceptional — the act or faculty of perceiving, or apprehending by means of the senses or of the mind; cognition; understanding.
- percussional — of or relating to percussion
- photonuclear — of, relating to, or caused by the collision of high-energy photons with the nucleus of an atom.
- pig launcher — A pig launcher is a device which starts a pig moving without interrupting flow.
- pipe cleaner — a short length of twisted flexible wires covered with tufted fabric, used to clean the stem of a smoker's pipe and for various handicrafts.
- piperacillin — a broad-spectrum semisynthetic penicillin, C 2 3 H 2 6 N 5 NaO 7 , used against certain susceptible Gram-positive and Gram-negative bacteria and certain anaerobes, especially P. aeruginosa.
- placentiform — shaped like a placenta, with a flat rounded form
- plaid screen — [XEROX PARC] A "special effect" that occurs when certain kinds of memory smashes overwrite the control blocks or image memory of a bit-mapped display. The term "salt and pepper" may refer to a different pattern of similar origin. Though the term as coined at PARC refers to the result of an error, some of the X demos induce plaid-screen effects deliberately as a display hack.
- plant-cutter — any of several South American, passerine birds of the family Phytotomidae, superficially resembling grosbeaks but having serrated edges on the bill that aid in cutting leaves and other plant food.
- porcelainite — Mineralogy. mullite.
- porcelainize — to make into or coat with porcelain or something resembling porcelain.
- porcelainous — made of or resembling porcelain
- porcelaneous — a strong, vitreous, translucent ceramic material, biscuit-fired at a low temperature, the glaze then fired at a very high temperature.
- porcellanise — to bake into porcelain
- porcellanite — hard and dense rock resembling unglazed porcelain
- porcellanize — to bake into porcelain
- post-nuclear — pertaining to or involving atomic weapons: nuclear war.
- pre-colonial — of or relating to the time before a region or country became a colony.
- precedential — of the nature of or constituting a precedent.
- precessional — the act or fact of preceding; precedence.
- preclearance — the act of clearing.
- preconciliar — (in the Catholic church) of or pertaining to a period prior to a church council, particularly one of the Vatican Councils
- press launch — the launch of a product, exhibition, event, etc, to which journalists are invited, in order to publicize it
- primal scene — a child's first real or imagined observation of parental sexual intercourse.
- prince royal — the eldest son of a king or queen.
- procellarian — a bird species from the genus Procellaria
- processional — of, relating to, or characteristic of a procession.
- proconsulate — the office or term of office of a proconsul.
- proteoglycan — a macromolecule composed of a polysaccharide joined to a polypeptide and forming the ground substance of connective tissue.
- radiolucency — almost entirely transparent to radiation; almost entirely invisible in x-ray photographs and under fluoroscopy.
- radionuclide — a radioactive nuclide.
- re-challenge — to challenge (someone or something) again
- re-landscape — a section or expanse of rural scenery, usually extensive, that can be seen from a single viewpoint.
- reallocation — the act of allocating; apportionment.
- rear echelon — (in a military operation) the troops, officers, etc., removed from the combat zone and responsible for administration, matériel, etc.
- recalcitrant — resisting authority or control; not obedient or compliant; refractory.
- recalescence — a brightening exhibited by cooling iron as latent heat of transformation is liberated.
- recentralize — to draw to or gather about a center.
- recognizable — to identify as something or someone previously seen, known, etc.: He had changed so much that one could scarcely recognize him.
- reconcilable — capable of being reconciled.
- reconvalesce — to convalesce again
- recreational — of or relating to recreation: recreational facilities in the park.
- renounceable — of a nature that can be renounced
- renovascular — of or relating to the blood vessels of the kidneys.
- reticulation — a reticulated formation, arrangement, or appearance; network.
- retinotectal — of or relating to the retina and the tectum