9-letter words containing a, t, o, p
- mossplant — another term for moss
- mousetrap — a trap for mice, especially one consisting of a rectangular wooden base on which a metal spring is mounted.
- mouthpart — Usually, mouthparts. the appendages surrounding or associated with the mouth of arthropods.
- myatrophy — myoatrophy.
- myopathic — Pertaining to myopathy.
- naphthols — Plural form of naphthol.
- naphthous — of, relating to or derived from naphtha
- navpaktos — Greek name of Lepanto.
- neoplasty — the surgical formation of new tissue structures or repair of damaged structures
- neuropath — A person affected by nervous disease, or with an abnormally sensitive nervous system.
- nonimpact — Not involving impact.
- nonpapist — not papist, not Roman Catholic
- nonparent — a person who is not a parent
- nonparity — the condition of having no parity; the state of not being equal
- nonpliant — not pliant; inflexible
- nonpostal — not postal, not relating to post
- nonstaple — not staple
- notaphily — the collecting of bank notes as a hobby.
- notepaper — writing paper, especially that used in writing notes or personal correspondence and usually less than 8½ × 11 inches (21.6 × 27.9 cm) in size.
- notopodia — Plural form of notopodium.
- nyctalope — a person or animal affected by nyctalopia
- nyctalops — a person affected by nyctalopia
- objectpal — Object-oriented database language, part of Borland's MS-Windows version of Paradox.
- occipital — of, relating to, or situated near the occiput or the occipital bone.
- occupants — Plural form of occupant.
- octaploid — an organism that consists of eight groups or sets of chromosomes
- octapodic — (in poetic metre) having or consisting of eight feet
- oil paint — oil color.
- oil patch — an area in which oil is produced.
- oil-plant — any of several plants, as the castor-oil plant or sesame, the seeds of which yield an oil.
- omphacite — a pale-green variety of pyroxene similar to olivine, found in eclogite.
- on patrol — monitoring an area
- onomatope — (linguistics) A word formed by onomatopoeia or mimesis.
- opacities — the state or quality of being opaque.
- open-cast — open-cut.
- opera hat — a man's tall, collapsible top hat, held open or in shape by springs and usually covered with a black, silky fabric. Also called gibus. Compare beaver1 (def 4), silk hat, top hat.
- operantly — In an operant manner.
- operatics — Exaggerated or overly emotional behaviour; histrionics.
- operating — used or engaged in performing operations: an operating surgeon.
- operation — an act or instance, process, or manner of functioning or operating.
- operative — a person engaged, employed, or skilled in some branch of work, especially productive or industrial work; worker.
- operatize — to turn (a play, novel, etc) into an opera
- operators — Plural form of operator.
- operatory — a room or other area with special equipment and facilities, as for dental surgery, scientific experiments, or the like.
- operettas — Plural form of operetta.
- opination — The state or process of opining. For example:.
- opinative — Conjectural; expressing an opinion rather than a fact.
- opiniated — Obsolete form of opinionated.
- oppilated — Simple past tense and past participle of oppilate.
- oppugnant — opposing; antagonistic; contrary.