11-letter words containing o, p, e, n, a, i
- senatorship — the office or position of a senator
- sideropenia — a lack of iron in the body
- singaporean — an island on the Strait of Singapore, off the S tip of the Malay Peninsula.
- speculation — the contemplation or consideration of some subject: to engage in speculation on humanity's ultimate destiny.
- spermatoxin — a substance toxic to spermatozoa.
- spontaneity — the state, quality, or fact of being spontaneous.
- steam point — the temperature at which water vapor condenses at a pressure of one atmosphere, represented by 100°C and 212°F.
- stephanotis — any vine belonging to the genus Stephanotis, of the milkweed family, having fragrant, waxy, white flowers and leathery leaves.
- subpoenaing — the usual writ for the summoning of witnesses or the submission of evidence, as records or documents, before a court or other deliberative body.
- supernation — a large body of people, associated with a particular territory, that is sufficiently conscious of its unity to seek or to possess a government peculiarly its own: The president spoke to the nation about the new tax.
- syncopative — relating to syncopation
- trepidation — tremulous fear, alarm, or agitation; perturbation.
- tripersonal — consisting of or existing in three persons, as the Godhead.
- trypanocide — a drug or substance that kills trypanosomes
- unappointed — by, through, or as a result of an appointment (often in contrast with elected): an appointed official.
- uncaptioned — a title or explanation for a picture or illustration, especially in a magazine.
- uncompanied — unaccompanied
- unipersonal — consisting of or existing as one person only.
- unipetalous — having only one petal.
- unoperative — having no use or effect; inoperative
- unpassioned — unpassionate
- unpolarized — of or relating to a medium that exhibits polarization.
- utopianizer — an idealist
- vasopressin — Biochemistry. a peptide hormone, synthesized in the hypothalamus and released by the posterior pituitary gland, that stimulates capillary muscles and reduces the flow of urine and increases its concentration.
- venographic — of or relating to venography
- videotaping — magnetic tape on which the electronic impulses produced by the video and audio portions of a television program, motion picture, etc., are recorded (distinguished from audiotape).
- windom peak — a mountain in SW Colorado, in the San Juan Mountains. 14,082 feet (4292 meters).
- windowpanes — Plural form of windowpane.
- xenographic — Of or pertaining to xenography.
- xenophobiac — (rare) A xenophobe; one who is xenophobic.
- xenophobian — (rare) A xenophobe; one who is xenophobic.
- xenoplastic — involving distantly related individuals
- ziprasidone — An antipsychotic drug used in the treatment of schizophrenia etc.