15-letter words containing i, h, r
- gregorian chant — the plain song or cantus firmus used in the ritual of the Roman Catholic Church.
- griffith-joyner — Florence, known as Flojo. 1959–98, US sprinter, winner of two gold medals at the 1988 Olympic Games
- grind to a halt — If a country's economy or something such as a process grinds to a halt, it gradually becomes slower or less active until it stops.
- group therapist — a psychotherapist who conducts group therapy
- growth industry — an industry that is experiencing rapid growth
- gulf of corinth — an inlet of the Ionian Sea between the Peloponnese and central Greece
- gynandromorphic — (of an organism) Having male and female characteristics.
- hacking x for y — [ITS] Ritual phrasing of part of the information which ITS made publicly available about each user. This information (the INQUIR record) was a sort of form in which the user could fill out various fields. On display, two of these fields were always combined into a project description of the form "Hacking X for Y" (e.g. ""Hacking perceptrons for Minsky""). This form of description became traditional and has since been carried over to other systems with more general facilities for self-advertisement (such as Unix plan files).
- haemoglobinuria — the presence of haemoglobin in the urine
- haemoglobinuric — relating to the presence of haemoglobin in the urine
- hair extensions — synthetic or human hair attached to the hair on someone's head to give the appearance of longer hair
- hair hygrometer — a hygrometer actuated by the changes in length of a strand of human hair brought about by changes in the relative humidity.
- hair of the dog — an alcoholic drink taken as an antidote to a hangover
- hair specialist — an expert in the treatment and care of human hair
- hair transplant — the surgical transfer of clumps of skin with hair or of viable hair follicles from one site of the body to another, usually performed to correct baldness.
- half-round file — a file having a semicircular cross-section
- halting problem — The problem of determining in advance whether a particular program or algorithm will terminate or run forever. The halting problem is the canonical example of a provably unsolvable problem. Obviously any attempt to answer the question by actually executing the algorithm or simulating each step of its execution will only give an answer if the algorithm under consideration does terminate, otherwise the algorithm attempting to answer the question will itself run forever. Some special cases of the halting problem are partially solvable given sufficient resources. For example, if it is possible to record the complete state of the execution of the algorithm at each step and the current state is ever identical to some previous state then the algorithm is in a loop. This might require an arbitrary amount of storage however. Alternatively, if there are at most N possible different states then the algorithm can run for at most N steps without looping. A program analysis called termination analysis attempts to answer this question for limited kinds of input algorithm.
- hamiltonstovare — a large strong short-haired breed of hound with a black, brown, and white coat
- hang in (there) — to hold steadfast; persevere
- hanging glacier — a glacier situated on a shelf above a valley or another glacier; it may be joined to the lower level by an icefall or separate from it
- harbour station — the part of a port where boats shelter or station
- hard disk drive — (storage) (HDD) A disk drive used to read and write hard disks.
- hard mint candy — a hardened mint-flavoured sweet
- hard of hearing — partially deaf
- hard-boiled egg — egg boiled until the yolk is set
- hardship clause — a clause in a contract which covers unforeseen events that would make it more difficult for one party to complete the contract, and in which case offers alternative terms
- hardy perennial — a plant that lasts three seasons or more and that can withstand freezing temperatures
- harlequin snake — the E American coral snake (Micrurus fulvius)
- harlequin table — a writing or dressing table having a central set of compartments that rise when drop leaves are raised.
- harmonic motion — periodic motion consisting of one or more vibratory motions that are symmetric about a region of equilibrium, as the motion of a vibrating string of a musical instrument.
- harmonic series — a series in which the reciprocals of the terms form an arithmetic progression.
- harun al-rashid — a.d. 764?–809, caliph of Baghdad 786–809: one of the greatest Abbasids, he was made almost a legendary hero in the Arabian Nights.
- harun ar-rashid — a.d. 764?-809; caliph of Baghdad (786-809): given popular fame as a hero of The Arabian Nights
- haute-normandie — a region of NW France, on the English Channel: generally fertile and flat
- have a right to — be entitled to
- have words with — to argue angrily with
- haversian canal — a microscopic channel in bone, through which a blood vessel runs.
- hawaiian guitar — a six-to-eight-string electric guitar, fretted with a piece of metal or bone to produce a whining, glissando sound, played in a horizontal position usually resting on the performer's knees or on a stand, and much used by country music performers.
- hay conditioner — either of two machines, one designed to crush stems of hay, the other to break and bend them, in order to cause more rapid and even drying
- hazard analysis — risk assessment
- heads will roll — If you say that heads will roll as a result of something bad that has happened, you mean that people will be punished for it, especially by losing their jobs.
- health minister — a government minister who is responsible for health
- hearing ear dog — a dog that has been trained to alert a hearing-impaired person to sounds, as a telephone ringing or dangerous noises.
- hearing-ear dog — a dog that has been trained to alert a hearing-impaired person to sounds, as a telephone ringing or dangerous noises.
- heart condition — cardiac disorder
- heart operation — a surgical operation performed on the heart
- heart-searching — a thorough examination of one's feelings and motives; a self-examination of one's conscience.
- heartbreakingly — causing intense anguish or sorrow.
- heather mixture — cloth made from a mixture of different yarns, predominantly grey but with flecks of different colours
- heaviside layer — E layer.