12-letter words containing e, p, s, t, i
- multiseptate — having several septa or chambers
- multispecies — of, relating to or affecting several species
- mycoparasite — a parasitic fungus whose host is another fungus.
- mycoproteins — Plural form of mycoprotein.
- mythopoiesis — (mythology) the creation of myth.
- nature strip — a grass strip in front of a house between a fence or footpath and a roadway
- needlepoints — Plural form of needlepoint.
- neoplatonism — a philosophical system, originated in the 3rd century a.d. by Plotinus, founded chiefly on Platonic doctrine and Eastern mysticism, with later influences from Christianity. It holds that all existence consists of emanations from the One with whom the soul may be reunited.
- neoplatonist — a philosophical system, originated in the 3rd century a.d. by Plotinus, founded chiefly on Platonic doctrine and Eastern mysticism, with later influences from Christianity. It holds that all existence consists of emanations from the One with whom the soul may be reunited.
- nephrologist — A physician whose speciality is nephrology.
- nephroptosis — An abnormal condition in which the kidney drops down into the pelvis when the patient stands up.
- nephrotomies — Plural form of nephrotomy.
- nepotistical — Nepotistic.
- neuroleptics — Plural form of neuroleptic.
- neuropathies — Plural form of neuropathy.
- neuropathist — a specialist in treating diseases of the nervous system; a neurologist
- neuroplastic — Of or pertaining to neuroplasticity.
- neuropterist — an entomologist specializing in neuropteran insects
- neurotropism — the quality of being neurotropic.
- neutrophiles — (of a cell or cell part) having an affinity for neutral dyes.
- neutrosophic — Neutrosophy
- new politics — politics concerned more with grass-roots participation in the political process than with party loyalty or affiliation: identified especially with the candidacies of Senators Eugene McCarthy and George McGovern.
- night person — a person who prefers to stay up late or who functions best during the nighttime hours.
- nondescripts — Plural form of nondescript.
- obreptitious — having the characteristics of acquiring something by deceitful means
- octapeptides — Plural form of octapeptide.
- oesophagitis — Alternative spelling of esophagitis.
- oil deposits — reserves of petroleum found underground (or under the sea)
- 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.
- opposite sex — man if woman, woman if man
- oppositeness — The state or condition of being opposite.
- optogenetics — (genetics) A science that combines optics and genetics to probe neural circuits.
- optometrists — Plural form of optometrist.
- oreopithecus — a genus of fossil primate from the Miocene coal deposits of Italy, formerly considered to be a possible hominid.
- ornithopters — Plural form of ornithopter.
- 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.
- orthopterist — someone who studies the Orthoptera
- osteoplastic — Surgery. pertaining to osteoplasty.
- osteoporosis — a disorder in which the bones become increasingly porous, brittle, and subject to fracture, owing to loss of calcium and other mineral components, sometimes resulting in pain, decreased height, and skeletal deformities: common in older persons, primarily postmenopausal women, but also associated with long-term steroid therapy and certain endocrine disorders.
- osteoporotic — of, relating to, or caused by osteoporosis.
- outside loop — a loop during which the back of the airplane is on the outer side of the curve described by the course of flight.
- outspreading — Present participle of outspread.
- overoptimism — a disposition or tendency to look on the more favorable side of events or conditions and to expect the most favorable outcome.
- overoptimist — someone who is too optimistic
- overshipment — an act or instance of shipping freight or cargo.
- paedobaptism — the baptism of infants
- paedobaptist — a person who baptizes infants
- paedodontics — the branch of dentistry that focuses on the care of children's teeth