13-letter words containing o, i, l, h, a, r
- hyaluronidase — Biochemistry. a mucolytic enzyme found in the testes, in snake venom, and in hemolytic streptococci and certain other bacteria, that decreases the viscosity of the intercellular matrix by breaking down hyaluronic acid.
- hydroairplane — a hydroplane.
- hydrocephalic — of or relating to hydrocephalus.
- hydropathical — Alternative form of hydropathic.
- hydrostatical — Alternative form of hydrostatic.
- hydroxylamine — an unstable, weakly basic, crystalline compound, NH 3 O, used as a reducing agent, analytical reagent, and chemical intermediate.
- hydroxylation — (organic chemistry) The introduction of a hydroxyl group into a molecule, especially by the replacement of a hydrogen atom.
- hygrometrical — Alternative form of hygrometric.
- hyperboloidal — Having the shape or form of a hyperboloid.
- hypermorality — conformity to the rules of right conduct; moral or virtuous conduct.
- hyperpolarize — to increase the difference in electric potential across (a cell membrane).
- hyperrational — characterized by excessive rationality
- hypobranchial — situated below the gills or beneath the branchial arches.
- hypsometrical — Of or pertaining to hypsometry.
- iatrochemical — relating to iatrochemistry or iatrochemists
- ideographical — Alternative form of ideographic.
- imperial moth — a yellow moth, Eacles imperialis, having a diagonal band of pinkish brown or purple: the hairy larvae feed on the leaves of hickory, oak, etc.
- interchondral — of or relating to cartilage or a cartilage.
- kilowatt-hour — a unit of energy, equivalent to the energy transferred or expended in one hour by one kilowatt of power; approximately 1.34 horsepower-hours. Abbreviation: kWh, K.W.H., kwhr.
- landownership — an owner or proprietor of land.
- leigh-mallory — Sir Trafford Leigh [traf-erd lee] /ˈtræf ərd li/ (Show IPA), 1892–1944, British Air Force officer.
- lexicographer — a writer, editor, or compiler of a dictionary.
- lexicographic — Like a dictionary, relating to lexicography (the writing of a dictionary).
- life-or-death — life-and-death.
- literacy hour — (in England and Wales) a daily reading and writing lesson that was introduced into the national primary school curriculum in 1998 to raise standards of literacy
- lithographing — Present participle of lithograph.
- lizard orchid — a European orchid, Himantoglossum hircinum, rare in Britain, having a spike of grey-green flowers smelling of goats
- loan-sharking — the practice of lending money at exorbitant or illegal interest rates
- logarithmancy — Divination using logarithms.
- logical truth — the property of being logically tautologous
- losing hazard — an unavoidable danger or risk, even though often foreseeable: The job was full of hazards.
- lymphographic — of or relating to lymphography
- macrocephalic — Cephalometry. being or having a head with a large cranial capacity.
- macrolecithal — megalecithal.
- marsh trefoil — buck bean.
- mephobarbital — The drug methylphenobarbital.
- microcephalia — Microcephaly.
- microcephalic — having a head with a small braincase.
- microcephalus — An abnormally small head.
- microlecithal — having a small amount of yolk, as certain eggs or ova.
- milford haven — a bay in SW Wales.
- mitochondrial — (cytology) Of, or relating to mitochondria.
- monarchically — In a monarchic or monarchical fashion.
- morphemically — By means of, or in terms, of morphemes.
- morphological — the branch of biology dealing with the form and structure of organisms.
- mother-in-law — the mother of one's husband or wife.
- necrophiliacs — Plural form of necrophiliac.
- nephrological — of or relating to nephrology
- neurochemical — of or relating to neurochemistry.
- non-spherical — having the form of a sphere; globular.