13-letter words containing e, t, h, r, a
- hyperparasite — an organism that is parasitic on or in another parasite.
- hyperrational — characterized by excessive rationality
- hyperreactive — Showing a much greater than normal response to a stimulus.
- hyperromantic — extremely or excessively romantic
- hypersalinity — an excess of salt in a saline solution
- hyperthetical — Misspelling of hypothetical.
- hypervigilant — keenly watchful to detect danger; wary: a vigilant sentry.
- hyponatraemia — a condition in which there is a low concentration of sodium in the blood
- hypsometrical — Of or pertaining to hypsometry.
- hyracotherium — eohippus.
- hysteranthous — relating to a plant whose flowers open before its leaves
- iatrochemical — relating to iatrochemistry or iatrochemists
- immunotherapy — treatment designed to produce immunity to a disease or enhance the resistance of the immune system to an active disease process, as cancer.
- impact wrench — an electric or pneumatic power wrench with interchangeable toolhead attachments, used for installing and removing nuts, bolts, and screws.
- 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.
- in order that — used to introduce a clause of purpose
- initial rhyme — beginning rhyme.
- interchanging — Present participle of interchange.
- interchondral — of or relating to cartilage or a cartilage.
- interwreathed — Simple past tense and past participle of interwreathe.
- intrathecally — In an intrathecal way; into the spinal canal.
- irish pennant — an unwhipped rope end.
- ishihara test — a test for determining color blindness by means of a series of cards each having colored dots that form one pattern to the normal eye and a different pattern to the eye that is color-blind.
- isobathytherm — a line on a chart or diagram of a body of water, connecting depths having the same temperature.
- isothermobath — a line drawn on a diagram of a vertical section of the ocean connecting all points having equal temperature.
- jack-the-rags — a rag-and-bone man
- johore strait — a narrow strait between Malaya and Singapore Island
- joseph crater — Joseph Force [fawrs,, fohrs] /fɔrs,, foʊrs/ (Show IPA), 1889–? a judge of the New York State Supreme Court: his mysterious disappearance on August 6, 1930, has never been solved.
- karaoke night — a social occasion when karaoke sessions are held for entertainment, often in a pub or bar
- katharometers — Plural form of katharometer.
- kenneth arrow — Kenneth Joseph, born 1921, U.S. economist: Nobel Prize 1972.
- khapra beetle — a tiny cosmopolitan beetle, Trogoderma granarium, that is a pest of stored grain and other dried organic matter.
- kindheartedly — In a kindhearted manner.
- kinematograph — cinematograph.
- kinesitherapy — a movement-based therapy
- kitchen paper — also kitchen roll
- kitchen range — cooker with oven and hob
- knight errant — a wandering knight; a knight who traveled widely in search of adventures, to exhibit military skill, to engage in chivalric deeds, etc.
- knight-errant — a wandering knight; a knight who traveled widely in search of adventures, to exhibit military skill, to engage in chivalric deeds, etc.
- know by heart — have memorized
- ladder stitch — an embroidery stitch in which crossbars at equal distances are produced between two solid ridges of raised work.
- lantern wheel — a wheel, used like a pinion, consisting essentially of two parallel disks or heads whose peripheries are connected by a series of bars that engage with the teeth of another wheel.
- large-hearted — having or showing generosity; charitable; understanding.
- lateral chain — an open chain of atoms attached to an atom of a larger chain, or to a ring.
- laughter club — a group of people who meet regularly to take part in communal laughing for therapeutic effect
- laurel wreath — a wreath of interlocking laurel leaves and branches, which can be worn on the head to represent victory
- lead chromate — a yellow crystalline compound, PbCrO 4 , toxic, insoluble in water: used as an industrial paint pigment.
- leather goods — products made of animal skin
- leatherjacket — Also called leather jack. any of several carangid fishes having narrow, linear scales embedded in the skin at various angles, especially Oligoplites saurus, found in tropical American waters.
- lethal factor — a gene that under certain conditions causes the death of an organism.