13-letter words containing o, s, i
- harmonisation — (British spelling) alternative spelling of harmonization.
- haruspication — the use of animal entrails for divination
- hash function — (programming) A hash coding function which assigns a data item distinguished by some "key" into one of a number of possible "hash buckets" in a hash table. The hash function is usually combined with another more precise function. For example a program might take a string of letters and put it in one of twenty six lists depending on its first letter. Ideally, a hash function should distribute items evenly between the buckets to reduce the number of hash collisions. If, for example, the strings were names beginning with "Mr.", "Miss" or "Mrs." then taking the first letter would be a very poor hash function because all names would hash the same.
- have occasion — If you have occasion to do something, it is necessary for you to do it.
- heading sword — a sword used for beheading.
- heartstopping — Very exciting or shocking, as though to cause one's heart to skip beats.
- 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.).
- 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.
- hepatectomies — Plural form of hepatectomy.
- herefordshire — a former county in W England, now part of Hereford and Worscester.
- heresiography — a treatise on heresy.
- heresiologist — a person who studies or writes about heresies.
- hermaphrodism — the condition of being a hermaphrodite.
- hero sandwich — a large sandwich, usually consisting of a small loaf of bread or long roll cut in half lengthwise and containing a variety of ingredients, as meat, cheese, lettuce, and tomatoes.
- herod antipas — died after a.d. 39, ruler of Galilee, a.d. 4–39: ordered the execution of John the Baptist and participated in the trial of Jesus.
- heroic stanza — elegiac stanza.
- herpetologist — the branch of zoology dealing with reptiles and amphibians.
- hertfordshire — a county in SE England. 631 sq. mi. (1635 sq. km).
- hessian boots — a knee-high tasseled boot, fashionable in England in the early 19th century.
- hetero-sexism — a prejudiced attitude or discriminatory practices against homosexuals by heterosexuals.
- heteroblastic — (of a plant or plant part) showing a marked difference in form between the juvenile and the adult structures
- heteroclitous — heteroclite
- heterogenesis — Also, heterogeny [het-uh-roj-uh-nee] /ˌhɛt əˈrɒdʒ ə ni/ (Show IPA). alternation of generations, especially the alternation of parthenogenetic and sexual generations.
- heteroglossia — (linguistics) the coexistence of distinct varieties within a single linguistic code.
- heteroplastic — the repair of lesions with tissue from another individual or species.
- heterostylism — the condition of being heterostyled
- heterozygosis — the state of being a heterozygote.
- hiberno-saxon — having the characteristics of both the Irish and English; Anglo-Irish.
- hickory hills — a town in NE Illinois.
- hieracosphinx — (in ancient Egyptian art) a hawk-headed sphinx
- hieroglyphics — Also, hieroglyphical. designating or pertaining to a pictographic script, particularly that of the ancient Egyptians, in which many of the symbols are conventionalized, recognizable pictures of the things represented.
- hieroglyphist — a person who studies hieroglyphics; hieroglyphologist.
- high holidays — either of two holy days of special significance, Rosh Hashanah or Yom Kippur.
- high-sounding — having an impressive or pretentious sound; grand: the high-sounding titles of minor officials.
- hilariousness — The characteristic of being hilarious; hilarity.
- hill of beans — something of trifling value; virtually nothing at all: The problem didn't amount to a hill of beans.
- hippo zarytus — ancient name of Bizerte.
- histiocytosis — (medicine) An excess of histiocytes, associated with various rare diseases.
- histiophoroid — of or relating to the sailfish
- histochemical — the branch of science dealing with the chemical components of cellular and subcellular tissue.
- histodialysis — histolysis.
- histogramming — (mathematics) The construction of histograms.
- historicizing — Present participle of historicize.
- histrionicism — histrionic behaviour or acts
- hit the books — to deal a blow or stroke to: Hit the nail with the hammer.