9-letter words containing a, p, o, i, n
- impaction — an act or instance of impacting.
- impassion — to fill, or affect strongly, with intense feeling or passion; inflame; excite.
- important — of much or great significance or consequence: an important event in world history.
- in a spot — a rounded mark or stain made by foreign matter, as mud, blood, paint, ink, etc.; a blot or speck.
- incompact — not compact; loose.
- incompass — Archaic form of encompass.
- inoperant — Not operant.
- inopinate — unexpected
- ionopause — the transitional zone between the ionosphere and the mesosphere.
- isopteran — a member of the order Isoptera which includes social, colonizing insects such as termites
- isopycnal — Also, isopycnal [ahy-suh-pik-nl] /ˌaɪ səˈpɪk nl/ (Show IPA). having the same density.
- japonicas — Plural form of japonica.
- kniphofia — Any of several plants, of the genus Kniphofia, having bright, upright flowers.
- lap joint — Also called plain lap. a joint, as between two pieces of metal or timber, in which the pieces overlap without any change in form.
- lone pair — shoes, eyes
- main loop — (programming) The top-level control flow construct in an input- or event-driven program, the one which receives and acts or dispatches on the program's input events. See also driver.
- mattaponi — a river in E Virginia, flowing SE to join the Pamunkey and form the York River. 120 miles (193 km) long.
- meropidan — any insectivorous bird of the family Meropidae
- monopodia — a single main axis that continues to extend at the apex in the original line of growth, giving off lateral branches beneath in acropetal succession.
- nauplioid — of or relating to the first stage in the development of a freshly hatched nauplius larva
- nemophila — any of a genus, Nemophila, of low-growing hairy annual plants, esp N. menziesii, grown for its blue or white flowers: family Hydrophyllaceae
- neophilia — Love of new things.
- neophobia — Extreme or irrational fear or dislike of anything new, novel, or unfamiliar.
- neopilina — any primitive mollusk of the genus Neopilina, having a serial repetition of internal organs that suggests a close relationship to the annelids.
- neoplasia — Pathology. tumor growth.
- nonimpact — Not involving impact.
- nonpapist — not papist, not Roman Catholic
- nonpareil — having no equal; peerless.
- nonparity — the condition of having no parity; the state of not being equal
- nonpaying — Not paying.
- nonpliant — not pliant; inflexible
- noscapine — (biochemistry) A benzylisoquinoline alkaloid obtained from plants of the Papaveraceae family, primarily used for its antitussive effects.
- notaphily — the collecting of bank notes as a hobby.
- notopodia — Plural form of notopodium.
- oil paint — oil color.
- oil-plant — any of several plants, as the castor-oil plant or sesame, the seeds of which yield an oil.
- omnigraph — a device for converting Morse Code signals that are punched on a tape into audio signals, used in the training of telegraph operators.
- opalizing — Present participle of opalize.
- operating — used or engaged in performing operations: an operating surgeon.
- operation — an act or instance, process, or manner of functioning or operating.
- opination — The state or process of opining. For example:.
- opinative — Conjectural; expressing an opinion rather than a fact.
- opiniated — Obsolete form of opinionated.
- opsomania — an extreme enthusiasm for a particular food
- opticians — Plural form of optician.
- orphaning — Present participle of orphan.
- orpharion — (music) A musical instrument of the Renaissance, part of the cittern family, whose metal strings are tuned like a lute's and plucked with the fingers.
- outpacing — Present participle of outpace.
- overpaint — to cover over with paint
- pack into — If someone packs a lot of something into a limited space or time, they fit a lot into it.