16-letter words containing r, h, i
- have no time for — not tolerate
- haversian system — a Haversian canal and the series of concentric bony plates surrounding it.
- hawaiian gardens — a town in SW California.
- hawksbill turtle — a sea turtle, Eretmochelys imbricata, the shell of which is the source of tortoise shell: an endangered species.
- headhunting firm — a recruiting agency
- headmistressship — (rare) Alternative form of headmistress-ship.
- health authority — a government agency that is responsible for NHS care in a particular area
- health inspector — a public employee who inspects places such as restaurants, shops, factories etc to make sure they are hygienic and do not pose any dangers to health
- health insurance — insurance that compensates the insured for expenses or loss incurred for medical reasons, as through illness or hospitalization.
- hearing-impaired — having reduced or deficient hearing ability; hard-of-hearing: special programs for hearing-impaired persons.
- hearsay evidence — testimony based on what a witness has heard from another person rather than on direct personal knowledge or experience.
- heat of reaction — the heat evolved or absorbed when one mole of a product is formed at constant pressure
- heat prostration — heat exhaustion.
- heating engineer — a person whose job is to install and maintain equipment used for heating buildings
- heavier-than-air — (of an aircraft) weighing more than the air that it displaces, hence having to obtain lift by aerodynamic means.
- hebbian learning — (artificial intelligence) The most common way to train a neural network; a kind of unsupervised learning; named after canadian neuropsychologist, Donald O. Hebb. The algorithm is based on Hebb's Postulate, which states that where one cell's firing repeatedly contributes to the firing of another cell, the magnitude of this contribution will tend to increase gradually with time. This means that what may start as little more than a coincidental relationship between the firing of two nearby neurons becomes strongly causal. Despite limitations with Hebbian learning, e.g., the inability to learn certain patterns, variations such as Signal Hebbian Learning and Differential Hebbian Learning are still used.
- heinrich himmler — Heinrich [hahyn-rikh] /ˈhaɪn rɪx/ (Show IPA), 1900–45, German Nazi leader and chief of the secret police.
- heir presumptive — a person who is expected to be the heir but whose expectations may be canceled by the birth of a nearer heir.
- heliotherapeutic — Pertaining to heliotherapy.
- hematocrit-value — a centrifuge for separating the cells of the blood from the plasma.
- hematocrystallin — (biology, archaic) hemoglobin.
- hemicorporectomy — (surgery) The surgical procedure which cuts through the spine and removes the lower half of the body from the waist down.
- hemorrhoidectomy — the surgical removal of hemorrhoids.
- hemotherapeutics — hemotherapy.
- here we go again — You use expressions such as 'here we go' and 'here we go again' in order to indicate that something is happening again in the way that you expected, especially something unpleasant.
- herman hollerith — (person) The promulgator of the punched card. Hollerith was born on 1860-02-29 and died on 1929-11-17. He graduated from Columbia University, NewYork, NY, USA. He joined the US Census Bureau as a statistician where he used a punched card device to help analyse the 1880 US census data. This punched card system stored data in 80 columns. This "80-column" concept has carried forward in various forms into modern applications. In 1896, Hollerith founded the Tabulating Machine Company to exploit his invention and in 1924 his firm became part of IBM. The Hollerith system was used for the 1911 UK census. A correspondant writes: Wasn't Hollerith's original machine first used for the 1990 US census? And I think I am right in saying that the physical layout was a 20x12 grid of round holes. The one I have seen (picture only, unfortunately, not the real thing) did not use 'columns' as such but holes were grouped into irregularly-shaped fields, such that each hole had a more-or-less independent function.
- hermaphroditical — Alternative form of hermaphroditic.
- hermitian matrix — Mathematics. a matrix, whose entries are complex numbers, equal to the transpose of the matrix whose entries are the conjugates of the entries of the given matrix.
- herod agrippa ii — died ?93 ad, king of territories in N Palestine (50–?93 ad). He presided (60) at the trial of Saint Paul and sided with the Roman authorities in the Jewish rebellion of 66
- heroin addiction — addiction to the drug heroin
- herpes genitalis — genital herpes.
- herringbone bond — a brickwork bond in which the exposed brickwork is bonded to the heart of the wall by concealed courses of bricks laid diagonally to the faces of the wall in a herringbone pattern, with the end of each brick butting against the side of the adjoining brick; a form of raking bond.
- herringbone gear — a helical gear having teeth that lie on the pitch cylinder in a V -shaped form so that one half of each tooth is on a right-handed helix and the other half on a left-handed helix.
- heterometabolism — insect development in which the young hatch in a form very similar to the adult and then mature without a pupal stage
- heteromultimeric — (biochemistry) Describing a protein containing two or more different polypeptide chains.
- heteropalindrome — Something that spells something else when reversed, a semordnilap.
- heterosuggestion — Suggestion from outside.
- hexahydroaniline — cyclohexylamine.
- hieroglyphically — In hieroglyphics.
- hierophantically — In a hierophantic manner; in the manner of a hierophant.
- high court judge — a judge who sits in the High Court
- high memory area — (storage) (HMA) The first 64 kilobytes (minus 16 byte) of the extended memory on an IBM PC. By a strange design glitch the Intel 80x86 processors can actually address 17*64 kbyte minus 16 byte of memory (from 0000:0000 to ffff:ffff) in real mode. In the Intel 8086 and Intel 8088 processors, unable to handle more than 1 megabyte of memory, addressing wrapped around, that is, address ffff:0010 was equivalent to 0000:0000. For compatibility reasons, later processors still wrapped around by default, but this feature could be switched off. Special programs called A20 handlers can control the addressing mode dynamically, thereby allowing programs to load themselves into the 1024--1088 kbyte region and run in real mode. From version 5.0 parts of MS-DOS can be loaded into HMA as well freeing up to 46 kbytes of conventional memory.
- high renaissance — a style of art developed in Italy in the late 15th and early 16th centuries, chiefly characterized by an emphasis on draftsmanship, schematized, often centralized compositions, and the illusion of sculptural volume in painting. Compare Early Renaissance, Venetian (def 2).
- high wire artist — a performer of a high-wire act
- high-compression — of a modern type of internal-combustion engine designed so that the fuel mixture is compressed into a smaller cylinder space, resulting in more pressure on the pistons and more power
- high-pass filter — a filter that allows high-frequency electromagnetic signals to pass while rejecting or attenuating others below a specific value.
- high-performance — A high-performance car or other product goes very fast or does a lot.
- high/great hopes — If you have high hopes or great hopes that something will happen, you are confident that it will happen.
- higher criticism — the study of the Bible having as its object the establishment of such facts as authorship and date of composition, as well as determination of a basis for exegesis.
- higher education — education beyond high school, specifically that provided by colleges and graduate schools, and professional schools.