13-letter words containing p, o, r, l
- hydroairplane — a hydroplane.
- hydrocephalic — of or relating to hydrocephalus.
- hydrocephalus — an accumulation of serous fluid within the cranium, especially in infancy, due to obstruction of the movement of cerebrospinal fluid, often causing great enlargement of the head; water on the brain.
- hydropathical — Alternative form of hydropathic.
- hydrosulphate — a salt formed by the direct union of sulfuric acid with an organic base, especially an alkaloid, and usually more soluble than the base.
- hydrosulphide — a compound containing the univalent group –HS.
- hydrosulphite — hyposulfite (def 1).
- hyperbolising — to use hyperbole; exaggerate.
- hyperboloidal — Having the shape or form of a hyperboloid.
- hyperlordosis — Particularly severe lordosis.
- hypermobility — An excess amount of elasticity in a bodily joint.
- hypermorality — conformity to the rules of right conduct; moral or virtuous conduct.
- hypermotility — excessive motility of the stomach or intestine (opposed to hypomotility).
- hyperpersonal — Very highly personal.
- hyperpolarize — to increase the difference in electric potential across (a cell membrane).
- hyperrational — characterized by excessive rationality
- hypervelocity — extremely high velocity, as of projectiles, space vehicles, or accelerated nuclear particles.
- hypobranchial — situated below the gills or beneath the branchial arches.
- hypochlorites — Plural form of hypochlorite.
- hyposulfurous — of or derived from hyposulfurous acid.
- hyposulphuric — relating to sulphur which is in a lower state of oxidation than it is in sulphuric compounds
- hypsometrical — Of or pertaining to hypsometry.
- hypsophyllary — relating to a hypsophyll
- ideographical — Alternative form of ideographic.
- imperial moth — a yellow moth, Eacles imperialis, having a diagonal band of pinkish brown or purple: the hairy larvae feed on the leaves of hickory, oak, etc.
- impersonalise — to make impersonal: The dial system impersonalized the telephone.
- impersonalism — the practice of maintaining impersonal relations with individuals or groups.
- impersonality — absence of human character or of the traits associated with the human character: He feared the impersonality of a mechanized world.
- impersonalize — to make impersonal: The dial system impersonalized the telephone.
- imponderables — Plural form of imponderable.
- importunately — urgent or persistent in solicitation, sometimes annoyingly so.
- improbability — the quality or condition of being improbable; unlikelihood.
- improvability — to bring into a more desirable or excellent condition: He took vitamins to improve his health.
- improvidently — In an improvident manner.
- incorporeally — In an incorporeal manner.
- incorruptable — Misspelling of incorruptible.
- incorruptible — not corruptible: incorruptible integrity.
- incorruptibly — In an incorruptible manner.
- inoperational — Not operational.
- inopportunely — In an inopportune manner.
- inscriptional — Of or pertaining to inscription.
- inspirational — imparting inspiration.
- insupportable — not endurable; unbearable; insufferable: insupportable pain.
- insupportably — In an insupportable manner.
- interoperable — capable of being used or operated reciprocally: interoperable weapons systems.
- interoperably — capable of being used or operated reciprocally: interoperable weapons systems.
- interpersonal — of or pertaining to the relations between persons: He has strong interpersonal skills.
- interpetiolar — situated between petioles, or situated between the axis and a petiole
- interpolating — Present participle of interpolate.
- interpolation — extrapolation