13-letter words containing s, u, m
- haematogenous — producing blood
- half measures — inadequate measures or actions
- harbourmaster — (British, Canada, nautical) An official responsible for the enforcement of regulations in a port.
- harvest mouse — an Old World field mouse, Micromys minutus, that builds a spherical nest among the stems of grains and other plants.
- he's your man — he's the person needed (for a particular task, role, job, etc)
- helianthemums — Plural form of helianthemum.
- hematophagous — feeding on blood, as the vampire bat.
- hemicellulose — any of a group of gummy polysaccharides, intermediate in complexity between sugar and cellulose, that hydrolyze to monosaccharides more readily than cellulose.
- hermit thrush — a North American thrush, Hylocichla guttata, noted for its complex and appealing song.
- home counties — The Home Counties are the counties which surround London.
- homeomorphous — similarity in crystalline form but not necessarily in chemical composition.
- homeothermous — remaining at an almost constant temperature
- homogeneously — composed of parts or elements that are all of the same kind; not heterogeneous: a homogeneous population.
- homosexualism — A sexual attraction to (or sexual relations with) individuals of the same sex.
- homosexuality — sexual desire or behavior directed toward a person or persons of one's own sex.
- horse's mouth — horse (def 36).
- host computer — the main computer in a network: controls or performs certain functions for other computers.
- hothouse lamb — a lamb born in the fall or early winter, usually reared indoors, specially fed, and marketed when from 9 to 16 weeks of age.
- house manager — a business manager responsible for managing a theater and its staff.
- house-warming — a party to celebrate a person's or family's move to a new home.
- housemistress — A female teacher in charge of a dormitory at a boarding school.
- housewarmings — Plural form of housewarming.
- humanitarians — Plural form of humanitarian.
- humorlessness — The state, quality, or condition of lacking humor.
- hunter's moon — the first full moon following the harvest moon in late September or early October.
- hydromedusoid — a jellyfish or something resembling a jellyfish that lives in water
- hymenopterous — belonging or pertaining to the Hymenoptera, an order of insects having, when winged, four membranous wings, and comprising the wasps, bees, ants, ichneumon flies, and sawflies.
- hyperurbanism — a pronunciation or grammatical form or usage produced by a speaker of one dialect according to an analogical rule formed by comparison of the speaker's own usage with that of another, more prestigious, dialect and often applied in an inappropriate context, especially in an effort to avoid sounding countrified, rural, or provincial, as in the pronunciation of the word two (to̅o̅) as (tyo̅o̅).
- if you ask me — You can say 'if you ask me' to emphasize that you are stating your personal opinion.
- ignominiously — marked by or attended with ignominy; discreditable; humiliating: an ignominious retreat.
- illuminations — Plural form of illumination.
- illustrissimo — most illustrious (esp as belonging to the Italian aristocracy)
- immune system — a diffuse, complex network of interacting cells, cell products, and cell-forming tissues that protects the body from pathogens and other foreign substances, destroys infected and malignant cells, and removes cellular debris: the system includes the thymus, spleen, lymph nodes and lymph tissue, stem cells, white blood cells, antibodies, and lymphokines.
- immunisations — Plural form of immunisation.
- immunizations — Plural form of immunization.
- immunochemist — A chemist whose speciality is immunochemistry.
- immunogenesis — the production of an immune response
- immunosorbent — an insoluble surface to which a specific antibody is attached for the purpose of removing the corresponding antigen from a solution or suspension.
- immutableness — The state of being immutable; unchangeableness.
- impactfulness — The quality of being impactful.
- impecuniosity — having little or no money; penniless; poor.
- impecuniously — In an impecunious manner.
- imperiousness — domineering in a haughty manner; dictatorial; overbearing: an imperious manner; an imperious person.
- impetuosities — Plural form of impetuosity.
- impetuousness — of, relating to, or characterized by sudden or rash action, emotion, etc.; impulsive: an impetuous decision; an impetuous person.
- importunities — Plural form of importunity.
- impostumation — an abscess or swelling filled with pus
- impulsiveness — actuated or swayed by emotional or involuntary impulses: an impulsive child.
- imputrescible — not liable to decomposition or putrefaction; incorruptible: a tanning process to make skins imputrescible.
- inclusion map — a map of a set to itself in which each element of a given subset of the set is mapped to itself.