12-letter words containing o, n, p, a, i
- oppositional — the action of opposing, resisting, or combating.
- oppressional — Exhibiting or relating to oppression.
- opsonisation — Alternative form of opsonization.
- opsonization — to increase the susceptibility of (bacteria) to ingestion by phagocytes.
- optimisation — Alternative spelling of optimization.
- optimization — The design and operation of a system or process to make it as good as possible in some defined sense.
- organoleptic — perceived by a sense organ.
- organotropic — designating or of a substance or virus that travels predominantly to a specific organ
- outspreading — Present participle of outspread.
- over-explain — to make plain or clear; render understandable or intelligible: to explain an obscure point. Synonyms: explicate. Antonyms: confuse.
- overplanning — the act or instance of planning excessively
- pacification — to pacify.
- pack rolling — the hot rolling of metal sheets in two or more thicknesses to produce composite sheets.
- packinghouse — a building where foodstuffs are packed
- 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
- pain control — methods for the relief and management of pain
- paint roller — a roller of absorbent material, mounted on a handle, that is rolled in a trough of paint and then rolled over a flat surface to be painted.
- 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.
- palification — the act of fortifying something with stakes
- palindromist — a word, line, verse, number, sentence, etc., reading the same backward as forward, as Madam, I'm Adam or Poor Dan is in a droop.
- palynologist — the study of live and fossil spores, pollen grains, and similar plant structures.
- pancake coil — a coil (of wire, etc) wound in a flat circular shape
- pancho-villa — Francisco [frahn-sees-kaw] /frɑnˈsis kɔ/ (Show IPA), (Doroteo Arango"Pancho Villa") 1877–1923, Mexican general and revolutionist.
- panchromatic — sensitive to all visible colors, as a photographic film.
- pancytopenia — an abnormally low level of all blood cells
- panic button — an alarm button for use in an emergency, as to summon help.
- panification — the making of bread
- panning shot — pan3 (def 6).
- pantechnicon — a furniture van; moving van.
- pantisocracy — a community, social group, etc, in which all have rule and everyone is equal
- pantophagist — an omnivore
- papal nuncio — someone, such as an archbishop, who is a state's representative of or ambassador to the Pope
- parachronism — a chronological error in which a person, event, etc., is assigned a date later than the actual one.
- paradoxidian — relating to the genus Paradoxides
- paradoxurine — relating to the palm civet
- paraffin-oil — a white or colorless, tasteless, odorless, water-insoluble, solid substance not easily acted upon by reagents, consisting of a mixture of hydrocarbons chiefly of the alkane series, obtained from crude petroleum: used in candles, for forming preservative coatings and seals, for waterproofing paper, etc.
- paralation c — Paralation embedded in C. Under development.
- paralipomena — Chronicles.
- paralyzation — to affect with paralysis.
- paramorphine — thebaine.
- paranoically — in a paranoiac manner
- paranthelion — a bright spot in the sky caused by refraction and occurring at an angular distance from the sun of between 90° and 140°
- parasol pine — stone pine (def 1).
- parasphenoid — a bone next to the sphenoid bone in the skull of some animals
- paring gouge — a woodworker's gouge having the bezel on the concave face.
- parkinsonian — (sometimes initial capital letter) of, related to, or resembling Parkinson's disease.
- parkinsonism — Parkinson's disease.
- parmigianino — (Girolamo Francesco Maria Mazzola) 1503–40, Italian painter.
- paronomastic — the use of a word in different senses or the use of words similar in sound to achieve a specific effect, as humor or a dual meaning; punning.