13-letter words containing o, h, m, s, l
- flamethrowers — Plural form of flamethrower.
- fluorochromes — Plural form of fluorochrome.
- gallows humor — humor that treats serious, frightening, or painful subject matter in a light or satirical way.
- gametothallus — a gamete-producing thallus.
- haematologist — A scientist, usually a medical doctor, who specializes in haematology.
- haemodialyses — Plural form of haemodialysis.
- haemodialysis — (medicine) the use of dialysis to remove waste products from the blood in the case of kidney failure.
- handsome lake — 1735-1815; Seneca prophet, social reformer, & founder of a North American Indian religion named after him
- 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.).
- hematologists — Plural form of hematologist.
- 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.
- hemocytoblast — a primordial cell capable of developing into any type of blood cell.
- heterostylism — the condition of being heterostyled
- histochemical — the branch of science dealing with the chemical components of cellular and subcellular tissue.
- holidaymakers — Plural form of holidaymaker.
- home assembly — assembly at home of something supplied in pieces
- home-schooler — to teach (one's children) at home instead of sending them to school.
- homeschoolers — Plural form of homeschooler.
- homeschooling — a school set up in the home.
- homestead law — any law exempting homesteads from seizure or sale for debt.
- 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.
- 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.
- humorlessness — The state, quality, or condition of lacking humor.
- hypsometrical — Of or pertaining to hypsometry.
- john marshall — Alfred, 1842–1924, English economist.
- lamellaphones — Plural form of lamellaphone.
- leishmaniosis — Alt form leishmaniasis.
- lighthouseman — a lighthouse keeper
- lightsomeness — (archaic) The quality of being lightsome.
- lithesomeness — the quality of being flexible and supple
- loathsomeness — The property or nature that gives rise to revulsion, that inspires loathing.
- luxembourgish — Also, Luxembourgish [luhk-suh m-bur-gish] /ˈlʌk səmˌbɜr gɪʃ/ (Show IPA). Letzeburgesch.
- lymphangiomas — Plural form of lymphangioma.
- lymphatolysis — destruction of lymphatic vessels or of lymphoid tissue.
- lymphoblastic — (US, cytology, immunology) Of or pertaining to a lymphoblast.
- lymphocytosis — an abnormal increase in the number of lymphocytes in the blood.
- lymphomatosis — lymphoma spread throughout the body.
- lymphopoiesis — the formation of lymphocytes.
- lymphosarcoma — a malignant tumor in lymphatic tissue, caused by the growth of abnormal lymphocytes.
- macrocephalus — Alternative spelling of macrocephalous.
- magnet school — a public school with special programs and instruction that are not available elsewhere in a school district and that are specially designed to draw students from throughout a district, especially to aid in desegregation.
- marsh trefoil — buck bean.
- melancholious — (obsolete) melancholy.
- melanochroous — having dark-coloured or black skin
- mesencephalon — Anatomy. the midbrain.
- mesocephalism — mesocephaly
- mesocephalous — Alternative form of mesocephalic.