12-letter words containing t, r, i, s, o, c
- nonsymmetric — Not symmetric; asymmetrical.
- noticeboards — Plural form of noticeboard.
- nyctitropism — tending to assume at or just before nightfall positions unlike those maintained during the day, as the leaves or flowers of certain plants.
- obscurantism — opposition to the increase and spread of knowledge.
- obscurantist — opposition to the increase and spread of knowledge.
- obscurations — Plural form of obscuration.
- obstetrician — a physician who specializes in obstetrics. Abbreviation: OB, ob.
- obstructions — Plural form of obstruction.
- octastrophic — having or containing eight verses or strophes
- olfactronics — the measurement and analysis of smells through instruments
- 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.
- orchestrions — Plural form of orchestrion.
- oreopithecus — a genus of fossil primate from the Miocene coal deposits of Italy, formerly considered to be a possible hominid.
- ornithoscopy — divination from the observation of birds
- ortho-cousin — parallel cousin.
- orthoclastic — (of a crystal) having cleavages at right angles to each other.
- orthocousins — the children of two brothers or two sisters
- orthodontics — the branch of dentistry dealing with the prevention and correction of irregular teeth, as by means of braces.
- orthodromics — the act or art of sailing on a great circle
- 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.
- orthosilicic — (chemistry) Of, relating to or derived from orthosilicic acid.
- oscillometer — an instrument for measuring oscillations, especially those of the arterial pulse.
- oscillometry — an instrument for measuring oscillations, especially those of the arterial pulse.
- osteoporotic — of, relating to, or caused by osteoporosis.
- ostrich fern — a tall North American fern, Matteuccia struthiopteris, with large mature leaves that resemble ostrich plumes, a popular landscaping plant whose curled new leaves, called fiddleheads, are eaten as a vegetable.
- otosclerosis — formation of new bone about the stapes or cochlea, resulting in hearing loss.
- outcroppings — Plural form of outcropping.
- overcautious — excessively or unnecessarily cautious: Sometimes it doesn't pay to be overcautious in business.
- overdiscount — to discount excessively
- overstocking — to stock to excess: We are overstocked on this item.
- pantisocracy — a community, social group, etc, in which all have rule and everyone is equal
- parochialist — a parochial character, spirit, or tendency; excessive narrowness of interests or view; provincialism.
- 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.
- patroclinous — inheritance in which the traits of the offspring are derived primarily from the paternal parent (opposed to matrocliny).
- period costs — Period costs are general costs that cannot be associated with a particular product, such as utilities or insurance.
- periodontics — the branch of dentistry dealing with the study and treatment of diseases of the periodontium.
- periostracum — the external, chitinlike covering of the shell of certain mollusks that protects the limy portion from acids.
- peristeronic — of, pertaining to, or resembling pigeons
- peristomatic — surrounding a leaf's stoma or stomata
- peritrichous — (of bacteria) having a uniform distribution of flagella over the body surface.
- pertinacious — holding tenaciously to a purpose, course of action, or opinion; resolute.
- petrochemist — someone who studies petrochemistry or works in the petrochemical industry
- petrophysics — the analysis of the constitution and characteristics of rocks
- phenocrystic — relating to a phenocryst
- physogastric — pertaining to the swollen, membranous abdomen of certain insects, especially termite and ant queens.
- pictorialism — Fine Arts. the creation or use of pictures or visual images, especially of recognizable or realistic representations.
- pictorialist — Fine Arts. the creation or use of pictures or visual images, especially of recognizable or realistic representations.
- picture show — motion picture.
- pirate coast — an independent federation in E Arabia, formed in 1971, now comprising seven emirates on the S coast (formerly, Pirate Coast or Trucial Coast) of the Persian Gulf, formerly under British protection: Abu Dhabi, Dubai, Sharjah, Ajman, Umm al-Qaiwain, Ras al-Khaimah (joined 1972), and Fujairah. About 32,300 sq. mi. (83,657 sq. km). Capital: Abu Dhabi. Abbreviation: U.A.E.