12-letter words containing a, r, i, s, t
- nonversation — A meaningless conversation.
- normalities' — conforming to the standard or the common type; usual; not abnormal; regular; natural.
- north island — the northernmost principal island of New Zealand. 44,281 sq. mi. (114,690 sq. km).
- noticeboards — Plural form of noticeboard.
- nugatoriness — Quality of being nugatory.
- obscurantism — opposition to the increase and spread of knowledge.
- obscurantist — opposition to the increase and spread of knowledge.
- obscurations — Plural form of obscuration.
- observations — Plural form of observation.
- obstetrician — a physician who specializes in obstetrics. Abbreviation: OB, ob.
- octastrophic — having or containing eight verses or strophes
- olfactronics — the measurement and analysis of smells through instruments
- operationism — the doctrine that the meaning of a scientific term, concept, or proposition consists of the operation or operations performed in defining or demonstrating it.
- operatorship — (in the oil and gas industries) the right to operate a well, field, or other oil source.
- ophiolatrous — of, relating to, or practising snake-worshipping
- opinionators — Plural form of opinionator.
- opisthograph — a manuscript, parchment, or book having writing on both sides of the leaves.
- optoisolator — A device that transmits a signal optically between two isolated electronic circuits.
- oral history — information of historical or sociological importance obtained usually by tape-recorded interviews with persons whose experiences and memories are representative or whose lives have been of special significance.
- oral society — a society that has not developed literacy
- orange stick — a slender, rounded stick, originally of orangewood, having tapered ends and used in manicuring, especially to push back the cuticles or clean the fingernails.
- organisation — the act or process of organizing.
- orientations — Plural form of orientation.
- originations — Plural form of origination.
- orthoclastic — (of a crystal) having cleavages at right angles to each other.
- orthopaedics — (used with a singular verb) the medical specialty concerned with correction of deformities or functional impairments of the skeletal system, especially the extremities and the spine, and associated structures, as muscles and ligaments.
- orthopaedist — Alternative spelling of orthopedist.
- outsider art — art produced by untutored artists working by themselves and for themselves
- outspreading — Present participle of outspread.
- ovariotomies — Plural form of ovariotomy.
- ovariotomist — a surgeon who performs ovariotomies
- over against — in opposition to; contrary to; adverse or hostile to: twenty votes against ten; against reason.
- overcautious — excessively or unnecessarily cautious: Sometimes it doesn't pay to be overcautious in business.
- overestimate — to estimate at too high a value, amount, rate, or the like: Don't overestimate the car's trade-in value.
- oversedation — the calming of mental excitement or abatement of physiological function, especially by the administration of a drug.
- overstaffing — the provision of an excessive number of staff for (a factory, hotel, etc)
- overstrained — exerted, taxed, or used to an excessive extent
- pair skating — a form of competitive skating in which a man and a woman skate together in performing a choreographed series of jumps, lifts, and other acrobatic moves to a selection of music.
- 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.
- panarthritis — arthritis in the entire joint
- pancreatitis — inflammation of the pancreas.
- panspermatic — relating to panspermia
- pantisocracy — a community, social group, etc, in which all have rule and everyone is equal
- paracentesis — puncture of the wall of a cavity to drain off fluid.
- paracystitis — inflammation of the connective tissue around the urinary bladder.
- paraesthesia — an abnormal sensation, as prickling, itching, etc.
- paraesthetic — paresthesia.
- paragnathism — the condition or fact of having upper and lower jaws of equal length
- parameterise — to describe (a phenomenon, problem, curve, surface, etc.) by the use of parameters.
- paraphrastic — having the nature of a paraphrase.