13-letter words containing s, t, a, y
- hyperesthesia — an abnormally acute sense of pain, heat, cold, or touch; algesia.
- hyperparasite — an organism that is parasitic on or in another parasite.
- hypersalinity — an excess of salt in a saline solution
- hypophosphate — a salt or ester of hypophosphoric acid.
- hyposexuality — A significantly low level of sexuality.
- hypostatizing — Present participle of hypostatize.
- hypotheticals — Plural form of hypothetical.
- hypsometrical — Of or pertaining to hypsometry.
- hysteranthous — relating to a plant whose flowers open before its leaves
- ichthyopsidan — a member of the class Ichthyopsida
- ichthyosaurus — ichthyosaur.
- ideal crystal — a crystal in which there are no defects or impurities
- idiosyncratic — pertaining to the nature of idiosyncrasy, or something peculiar to an individual: The best minds are idiosyncratic and unpredictable as they follow the course of scientific discovery.
- imagistically — (often initial capital letter) a theory or practice of a group of poets in England and America between 1909 and 1917 who believed that poetry should employ the language of common speech, create new rhythms, have complete freedom in subject matter, and present a clear, concentrated, and precise image.
- impassability — The state or quality of being impassable.
- impassibility — The state or condition of being impassible.
- impersonality — absence of human character or of the traits associated with the human character: He feared the impersonality of a mechanized world.
- improvisatory — of, relating to, or characteristic of an improvisation or improvisator.
- incontestably — incapable of being contested; not open to dispute; incontrovertible: incontestable proof.
- inelastically — In an inelastic way.
- inessentially — In an inessential way.
- inexhaustibly — not exhaustible; incapable of being depleted: an inexhaustible supply.
- infeasibility — not feasible; impracticable.
- inhospitality — lack of hospitality; inhospitable attitude toward or treatment of visitors, guests, etc.
- insatiability — not satiable; incapable of being satisfied or appeased: insatiable hunger for knowledge.
- insinuatingly — tending to instill doubts, distrust, etc.; suggestive: an insinuating letter.
- insociability — the state or quality of being insociable
- instantaneity — occurring, done, or completed in an instant: an instantaneous response.
- instinctually — of, relating to, or of the nature of instinct.
- insupportably — In an insupportable manner.
- intensionally — (philosophy) With respect to intension.
- intersexually — In an intersexual way.
- interstellary — interstellar
- interstratify — to lie in interposed or alternate strata.
- intransigency — a person who refuses to agree or compromise, as in politics.
- intravenously — through or within a vein. Abbreviation: IV.
- intrinsically — belonging to a thing by its very nature: the intrinsic value of a gold ring.
- investigatory — to examine, study, or inquire into systematically; search or examine into the particulars of; examine in detail.
- ipsilaterally — (anatomy, medicine) On the same side of the body.
- isobathytherm — a line on a chart or diagram of a body of water, connecting depths having the same temperature.
- isometrically — of, relating to, or having equality of measure.
- isosmotically — With the same osmotic pressure.
- isostatically — In an isostatic manner.
- justificatory — serving to justify; providing justification.
- justin martyr — Saint, a.d. c100–163? early church historian and philosopher.
- kenyapithecus — a genus of fossil hominoids of middle Miocene age found in Kenya and having large molars, small incisors, and powerful chewing muscles.
- keratinocytes — Plural form of keratinocyte.
- keratomycosis — Fungal infection of the cornea.
- key signature — (in notation) the group of sharps or flats placed after the clef to indicate the tonality of the music following.
- kinesitherapy — a movement-based therapy