13-letter words containing e, m, s, i
- haemodynamics — a branch of physiology that deals with the circulation of the blood
- head linesman — an official who makes rulings regarding play along the line of scrimmage and who oversees the measurement and marking of yardage gained or lost
- headmistressy — typical of the duties and behaviour of a headmistress
- helianthemums — Plural form of helianthemum.
- heliocentrism — The theory that the sun is the center of the universe, (This theory is historically important and was widely accepted at the time of Copernicus, Galileo and Kepler.).
- hellgrammites — Plural form of hellgrammite (Alternative spelling of hellgramites).
- helminthiasis — a disease caused by parasitic worms in the intestines.
- hematogenesis — hematopoiesis.
- hematologists — Plural form of hematologist.
- hematopoiesis — the formation of blood.
- hematosalpinx — (medicine) A medical condition involving bleeding into the Fallopian tubes.
- hemicellulose — any of a group of gummy polysaccharides, intermediate in complexity between sugar and cellulose, that hydrolyze to monosaccharides more readily than cellulose.
- hemichordates — Plural form of hemichordate.
- hemiparasitic — Semiparasitic.
- hemispherical — having the form of a hemisphere.
- hepatectomies — Plural form of hepatectomy.
- hereditaments — Plural form of hereditament.
- hermaphrodism — the condition of being a hermaphrodite.
- hermit thrush — a North American thrush, Hylocichla guttata, noted for its complex and appealing song.
- hetero-sexism — a prejudiced attitude or discriminatory practices against homosexuals by heterosexuals.
- heterostylism — the condition of being heterostyled
- hexadactylism — Sexdactyly.
- histaminergic — releasing histamine
- histochemical — the branch of science dealing with the chemical components of cellular and subcellular tissue.
- holidaymakers — Plural form of holidaymaker.
- home counties — The Home Counties are the counties which surround London.
- home invasion — an act or instance of entering an occupied residence with the intent to commit a burglary or other crime.
- home shopping — buying items via tv or internet
- home straight — the section of a racecourse forming the approach to the finish
- homeomorphism — similarity in crystalline form but not necessarily in chemical composition.
- homeownership — a person who owns a home.
- homeschooling — a school set up in the home.
- homoeroticism — a tendency to be sexually aroused by a member of the same sex.
- homogeneities — Plural form of homogeneity.
- homoscedastic — having the same variance.
- 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.
- 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.
- hybrid system — a way of working, organizing, or doing something that is composed of elements of two separate systems
- hydromedusoid — a jellyfish or something resembling a jellyfish that lives in water
- hyper-realism — interest in or concern for the actual or real, as distinguished from the abstract, speculative, etc.
- hypersplenism — an abnormal condition characterized by an enlarged spleen that prematurely destroys red blood cells or platelets.
- 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).
- hypsometrical — Of or pertaining to hypsometry.
- hysterotomies — Plural form of hysterotomy.
- ides of march — 15th March: ominous date
- idiomaticness — Idiomaticity.
- if you ask me — You can say 'if you ask me' to emphasize that you are stating your personal opinion.