9-letter words containing h, o, t, a
- hand-tool — tool (defs 8, 9).
- handtowel — a small piece of thick soft cloth used to dry the hands
- handwrote — to write (something) by hand.
- hansetown — Hansa (def 3).
- haplontic — (chiefly of an alga or other lower plant) having a life cycle in which the main form is haploid, with a diploid zygote being formed only briefly.
- haplotype — Genetics. a combination of closely linked DNA sequences on one chromosome that are often inherited together: By comparing haplotypes of a mother and father with those of a fetus, scientists can study how new genetic changes arise.
- happen to — chance to
- haptonema — In haptophytes, a peg-like organelle attached near the flagella and unique to the group. May function in attachment, feeding, or avoidance responses.
- hard boot — (operating system) A boot which resets the entire system. The phrase has connations of hostility toward, or frustration with, the computer being booted. For example, "I'll have to hard boot this losing Sun", or "I recommend booting it hard". Hard boots are often performed with a power cycle. Contrast soft boot. See also cold boot and reboot
- hardcourt — relating to a type of tennis court that is made of hard material
- hardstone — (arts) precious stone or semi-precious stone used to make intaglio, mosaics etc.
- hariolate — to practise divination or to prophesy
- harmonist — a member of a celibate religious sect that emigrated from Germany to Pennsylvania in 1803.
- harmonite — a member of a celibate religious sect that emigrated from Germany to Pennsylvania in 1803.
- harmotome — a zeolite mineral related to stilbite, occurring in twinned crystals.
- harrogate — a town in N England, in North Yorkshire: a former spa, now a centre for tourism and conferences. Pop: 70 811 (2001 est)
- hartshorn — the antler of a hart, formerly used as a source of ammonia.
- hatch out — be hatched from an egg
- hatinator — a small decorative hat, worn on social occasions
- haustoria — a projection from the hypha of a fungus into the organic matter from which it absorbs nutrients.
- have-nots — people who are very poor
- hawk moth — any of numerous moths of the family Sphingidae, noted for their very swift flight and ability to hover while sipping nectar from flowers.
- haworthia — any of various succulent plants of the genus Haworthia, native to South Africa, having densely overlapping, often warty leaves clustered in rosettes.
- hawthorne — Nathaniel, 1804–64, U.S. novelist and short-story writer.
- hawthorns — Plural form of hawthorn.
- hawthorny — resembling or characterized by hawthorns
- haycation — A vacation stay on a farm, in which guests often help out with daily farm tasks.
- head tone — (in singing) a vocal tone so produced as to bring the cavities of the nose and head into sympathetic vibration.
- headcloth — any cloth for covering the head, as a turban or wimple.
- headcount — The act of counting how many people are present in a group.
- headnotes — Plural form of headnote.
- headshots — Plural form of headshot.
- headstock — the part of a machine containing or directly supporting the moving or working parts, as the assembly supporting and driving the live spindle in a lathe.
- headstone — a stone marker set at the head of a grave; gravestone.
- heartsome — giving cheer, spirit, or courage: a heartsome wine.
- heartsore — heartsick.
- heartwood — the hard central wood of the trunk of an exogenous tree; duramen.
- heartworm — a parasitic nematode, Dirofilaria immitis, transmitted by mosquito and invading the heart and pulmonary arteries of dogs, wolves, and foxes throughout its range in tropical, subtropical and, more recently, temperate regions around the world.
- heat loss — the loss of heat from something such as a building
- heat-moon — William Least [leest] /list/ (Show IPA), (William Trogden) born 1939, U.S. writer.
- heatproof — not affected or damaged by heat, especially when placed in an oven or over a direct flame: heatproof cookware.
- hecatombs — Plural form of hecatomb.
- hectogram — a unit of mass or weight equal to 100 grams, equivalent to 3.527 ounces avoirdupois. Abbreviation: hg.
- hektogram — a unit of mass or weight equal to 100 grams, equivalent to 3.527 ounces avoirdupois. Abbreviation: hg.
- heliostat — an instrument consisting of a mirror moved by clockwork, for reflecting the sun's rays in a fixed direction.
- hematomas — (US) Plural form of hematoma (Alternative spelling of haematomas).
- hematosis — hematopoiesis.
- hematozoa — Plural form of hematozoon.
- hemoblast — hematoblast.
- hemopathy — (medicine) Any disorder or disease of the blood.