12-letter words containing a, c, h, i, l
- harmonically — pertaining to harmony, as distinguished from melody and rhythm.
- hatchability — to bring forth (young) from the egg.
- hedge garlic — an erect, cruciferous herb, Sisymbrium officinale, having a garlicky odor.
- helical gear — a cylindrical gear wheel whose teeth follow the pitch surface in a helical manner.
- helical rack — a rack having teeth set at an oblique angle to the edges. Compare rack1 (def 5).
- helical scan — denoting a recording technique used with video tapes in which the recorded tracks on the tape are segments of a helix
- helicobacter — Any member of the Helicobacter bacteria.
- helicographs — Plural form of helicograph.
- heliographic — a device for signaling by means of a movable mirror that reflects beams of light, especially sunlight, to a distance.
- hellaciously — In a hellacious manner.
- hemerocallis — the genus comprising the day lilies.
- hemophiliacs — Plural form of hemophiliac.
- hepaticology — the scientific study of bryophyte plants known as hepatics or liverworts
- heraldically — of, relating to, or characteristic of heralds or heraldry: heraldic form; heraldic images; heraldic history; a heraldic device.
- herbicidally — from a herbicidal point of view
- hermetically — so as to be airtight: hermetically sealed.
- heroicomical — blending heroic and comic elements: a heroicomic poem.
- heterosocial — relating to or denoting mixed-sex social relationships
- hexachloride — a chloride containing six atoms of chlorine.
- hexadactylic — having six fingers or toes
- hibernaculum — a protective case or covering, especially for winter, as of an animal or a plant bud.
- hiding place — location where sb is concealed
- hierarchical — of, belonging to, or characteristic of a hierarchy.
- hieratically — In a hieratic way.
- histological — the branch of biology dealing with the study of tissues.
- historically — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
- histrionical — (British) Alternative form of histrionic.
- holiday camp — In Britain, a holiday camp is a place which provides holiday accommodation and entertainment for large numbers of people.
- holistically — incorporating the concept of holism, or the idea that the whole is more than merely the sum of its parts, in theory or practice: holistic psychology.
- holophrastic — using or consisting of a single word that functions as a phrase or sentence.
- homolecithal — having a fairly uniform distribution of yolk, as certain eggs or ova having relatively little yolk.
- horometrical — Relating to horometry.
- horrifically — causing horror.
- hydraulicked — (of an extracted mineral) excavated using water
- hydroelastic — undergoing a change in elasticity as a result of the flow of water or another fluid
- hydrological — the science dealing with the occurrence, circulation, distribution, and properties of the waters of the earth and its atmosphere.
- hydronically — in a hydronic manner; in a manner relating to a heating system that uses water
- hygienically — conducive to good health; healthful; sanitary.
- hyper-social — relating to, devoted to, or characterized by friendly companionship or relations: a social club.
- hyperalgesic — Of or pertaining to hyperalgesia.
- hyperbolical — having the nature of hyperbole; exaggerated.
- hyperkalemic — Having a high percentage of potassium in one's blood.
- hyperlogical — reasoning in accordance with the principles of logic, as a person or the mind: logical thinking.
- hypermagical — produced by or as if by magic: The change in the appearance of the room was magical.
- hyperplastic — Of, or relating to hyperplasia.
- hypertypical — excessively typical
- hypnotically — of or relating to hypnosis or hypnotism.
- hypoallergic — Hypoallergenic.
- hypocalcemia — an abnormally small amount of calcium in the blood.
- hypocalcemic — Relating to, or exhibiting, hypocalcemia.