9-letter words containing s, a, p, o, n
- heptagons — Plural form of heptagon.
- hot pants — (used with a plural verb) very brief and usually tight-fitting shorts for women and girls, first popularized in the early 1970s.
- hyponasty — increased growth along the lower surface of a plant or plant part, causing it to bend upward.
- hypopneas — Plural form of hypopnea.
- impassion — to fill, or affect strongly, with intense feeling or passion; inflame; excite.
- in a spot — a rounded mark or stain made by foreign matter, as mud, blood, paint, ink, etc.; a blot or speck.
- incompass — Archaic form of encompass.
- 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.
- jalapenos — Plural form of jalapeno.
- japonicas — Plural form of japonica.
- layperson — a person who is not a member of the clergy; one of the laity.
- madperson — (gender-neutral) A madman or madwoman.
- manoscopy — the measurement of the densities of gases
- menopause — the period of permanent cessation of menstruation, usually occurring between the ages of 45 and 55.
- monocarps — Plural form of monocarp.
- monophase — (electricity) Having a single phase of alternating current.
- monospace — Of a typeface, having the same width for each character.
- montespan — Marquise de (Françoise Athénaïs de Rochechouart) 1641–1707, mistress of Louis XIV of France.
- moonphase — a phase of the moon
- moonscape — the general appearance of the surface of the moon.
- mossplant — another term for moss
- nanopores — Plural form of nanopore.
- naphthols — Plural form of naphthol.
- naphthous — of, relating to or derived from naphtha
- napoleons — Plural form of napoleon.
- nasoscope — Rhinoscope.
- navpaktos — Greek name of Lepanto.
- neopagans — Plural form of neopagan.
- neoplasia — Pathology. tumor growth.
- neoplasms — Plural form of neoplasm.
- neoplasty — the surgical formation of new tissue structures or repair of damaged structures
- noncampus — not located on a campus of a university, corporation, or any other business or organization
- nonpapist — not papist, not Roman Catholic
- nonparous — having borne no children.
- nonpostal — not postal, not relating to post
- nonstaple — not staple
- noscapine — (biochemistry) A benzylisoquinoline alkaloid obtained from plants of the Papaveraceae family, primarily used for its antitussive effects.
- nyctalops — a person affected by nyctalopia
- occupants — Plural form of occupant.
- on-campus — on the area of land that contains the main buildings of a university or college
- open-cast — open-cut.
- opsomania — an extreme enthusiasm for a particular food
- opticians — Plural form of optician.
- pad stone — a stone template.
- padronism — a system of exploitative work controlled by a padrone
- pancosmic — of every cosmos
- panderous — resembling a pander
- panegoism — a form of scepticism; subjective idealism