12-letter words containing e, c, h, i
- oligochaetes — Plural form of oligochaete.
- oligophrenic — less than normal mental development.
- olive branch — a branch of the olive tree as an emblem of peace.
- on the stick — alert, efficient, etc.
- orchestrions — Plural form of orchestrion.
- orchidaceous — belonging to the plant family Orchidaceae.
- orchidectomy — orchiectomy.
- oreopithecus — a genus of fossil primate from the Miocene coal deposits of Italy, formerly considered to be a possible hominid.
- orichalceous — relating to or resembling orichalc
- orthogenetic — pertaining to or exhibiting orthogenesis.
- 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.
- orthopedical — (American spelling) Alternative form of orthopaedical.
- osteichthyes — the class comprising the bony fishes.
- 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.
- other income — Other income is income that does not come from a company's main business, such as interest.
- overachieved — Simple past tense and past participle of overachieve.
- overachiever — to perform, especially academically, above the potential indicated by tests of one's mental ability or aptitude.
- overcharging — Present participle of overcharge.
- overemphatic — excessive or undue emphasis.
- overreaching — to reach or extend over or beyond: The shelf overreached the nook and had to be planed down.
- ozonic ether — a solution of hydrogen peroxide in ethyl ether.
- packinghouse — a building where foodstuffs are packed
- paedomorphic — showing signs of paedomorphism
- paedophiliac — an adult who is sexually attracted to young children.
- palaeolithic — the period of the emergence of primitive man and the manufacture of unpolished chipped stone tools, about 2.5 million to 3 million years ago until about 12 000 bc
- pantechnicon — a furniture van; moving van.
- papier-mache — a substance made of pulped paper or paper pulp mixed with glue and other materials or of layers of paper glued and pressed together, molded when moist to form various articles, and becoming hard and strong when dry.
- paraesthetic — paresthesia.
- parchmentize — to treat (paper or the like) so that it resembles parchment.
- parish clerk — an official designated to carry out various duties, either for a church parish or a parish council
- parity check — a method for detecting errors in data communications or within a computer system by counting the number of ones or zeros per byte or per word, including a special check bit (parity bit) to see if the value is even or odd.
- parochialise — to make parochial.
- parochialize — to make parochial.
- pathetically — causing or evoking pity, sympathetic sadness, sorrow, etc.; pitiful; pitiable: a pathetic letter; a pathetic sight.
- pathogenetic — the production and development of disease.
- patriarchate — the office, dignity, jurisdiction, province, or residence of an ecclesiastical patriarch.
- pelican hook — a hooklike device for holding the link of a chain or the like, consisting of a long shackle with a hinged rod held closed with a sliding ring.
- perichaetial — denoting the leaves in mosses that surround the archegonia and, later, the base of the sporophyte
- perichaetium — a leafy cluster (bracts) around the base of the reproductive organs of some plants, predominantly mosses
- perichoresis — the relationship between or interlinking of the three Persons of the Trinity (Father, Son, and Holy Spirit)
- pericynthion — the point at which a spacecraft launched from earth into a lunar orbit is nearest the moon
- perionychium — the epidermis surrounding the base and sides of a fingernail or toenail.
- periphrastic — circumlocutory; roundabout.
- peristrephic — that turns around or revolves
- peritrichate — (of bacteria) having flagella on the entire surface.
- peritrichous — (of bacteria) having a uniform distribution of flagella over the body surface.
- persulphuric — denoting a type of acid
- petach tikva — a city in W Israel, NE of Tel Aviv.
- petrochemist — someone who studies petrochemistry or works in the petrochemical industry
- petroglyphic — relating to or having the characteristics of a petroglyph or carving made in rock