All articles starting with E
17,681 articles
Erosion
Erosion is the removal of soil, rock, or dissolved material by surface processes such as flowing water, wind, and ice, which transport it elsewhere for deposition.
Erosion (morphology)
Erosion, also called morphological erosion, is a fundamental operator of mathematical morphology that shrinks bright or foreground regions of an image using a structuring element.
Erosion control
Erosion control is the practice of preventing or reducing the wearing away of land by water, wind, and related processes, applied on farmland, construction sites, forests, and streambanks.
Erosion of teeth
Erosion of teeth (dental erosion, erosive tooth wear, ICD-11 DA08.12) is irreversible acid dissolution of enamel and dentine without bacteria, from gastric acid or dietary, medicinal, and occupational acids, common in children and adults.
Erosion of the N=28 shell closure
The erosion of the N=28 shell closure is the progressive weakening of the magic neutron number N=28 in neutron-rich nuclei, collapsing to a deformed ground state in 42Si.
Erosion susceptibility mapping
Erosion susceptibility mapping is a geospatial modeling method that combines environmental factor layers with machine learning classifiers to classify land into erosion-proneness categories, supporting land-use planning and soil conservation.
Erosion test
An erosion test is a materials testing method that exposes a solid surface to abrasive particles, droplets, or cavitation and measures material loss to rank erosion resistance for engineering selection.
eROSITA
eROSITA (extended ROentgen Survey with an Imaging Telescope Array) is a German-built X-ray telescope on the Russian-German SRG mission, launched in 2019 to scan the whole sky.
eROSITA all-sky survey
The eROSITA all-sky survey (eRASS) is the X-ray survey of the entire sky carried out by the eROSITA telescope aboard the Russian-German SRG observatory, beginning in December 2019.
eROSITA bubbles
The eROSITA bubbles are two huge lobes of hot, X-ray-emitting gas extending about 14 kiloparsecs above and below the Galactic Centre, discovered in 2020 by the eROSITA telescope.
Erosive burning
Erosive burning is the increase in a solid propellant's burning rate caused by high-velocity combustion gas flowing parallel to the surface, typically at the aft end of a rocket motor's grain.
Erosive gastro-oesophageal reflux disease
Erosive gastro-oesophageal reflux disease (erosive oesophagitis, reflux esophagitis): GERD with endoscopic mucosal breaks graded LA A-D; LA-B or higher is conclusive evidence, treated with PPIs or P-CABs.
Erosive osteoarthritis
Erosive osteoarthritis is a severe, inflammatory form of hand osteoarthritis affecting mainly postmenopausal women, in which central subchondral erosions in the finger joints produce a gull-wing appearance on radiographs.
Erosive pustular dermatosis of the scalp
Erosive pustular dermatosis of the scalp (EPDS), also called erosive pustulosis, is a rare chronic inflammatory scalp disease of the elderly causing pustules, erosions, crusts, and scarring alopecia, treated mainly with potent topical corticosteroids.
Erotes
Erotes (ἔρωτες), the winged Greek gods of love, a multiplication of Eros including Anteros, Himeros, Pothos, Hedylogos, and Hymenaios; poetic companions of Aphrodite, adopted by Rome as Cupids.
Erotic art
Erotic art is art whose subject is sexual love or desire, from Greek eros. Distinguished from pornography by contested aesthetic criteria; shaped by censorship from Japanese shunga to algorithmic moderation.
Erotic art in Pompeii and Herculaneum
Erotic art in Pompeii and Herculaneum: Roman frescoes, sculptures, mosaics and phallic objects found from the eighteenth century, long held in Naples' Secret Cabinet (Gabinetto Segreto), and their modern display.
Erotic asphyxiation
Erotic asphyxiation (breath play, asphyxiophilia) restricts oxygen or blood flow to the brain for sexual arousal; autoerotic forms cause an estimated 250-1,000 US deaths yearly, mostly by hanging.
Erotic dance
Erotic dance, also called exotic dance or striptease, is dance intended to produce sexual arousal, from ancient aulētrides and Salome dances to modern gentlemen's clubs, lap dancing, and dancer labor organizing.
Erotic electrostimulation
Erotic electrostimulation (e-stim, estim, electroplay, electrosex) applies controlled electrical current via TENS/EMS-style control units and electrodes for sexual pleasure; safe practice avoids chest, head, pacemakers, and epilepsy, using purpose-built low-voltage equipment.
Erotic epigram
Erotic epigram is a genre of ancient Greek short love poetry, usually in elegiac couplets, that emerged in the Hellenistic period and survives mainly in the Greek Anthology.
Erotic fiction
Erotic fiction is fiction written primarily to arouse, with explicit sex as a defining requirement, distinct from romance. Key facts: U.S. un-banning 1959-1966, Miller v. California 1973, gay pulp waves, e-book boom, danmei censorship in China.
Erotic furniture
Erotic furniture, also called sex furniture, is furniture designed to support the body during sexual activity, from wedges and ramps to swings and bondage benches.
Erotic Ghost Story
Erotic Ghost Story (聊斋艳谭, Liao zhai yan tan) is a 1990 Hong Kong Category III fantasy horror directed by Ngai Choi Lam, starring Amy Yip, about three fox spirits seduced by the Wu Tung demon; it spawned sequels.
Erotic humiliation
Erotic humiliation, also called humiliation kink or degradation play, is a consensual BDSM practice using shame, embarrassment, or diminished status for arousal, distinguished from abuse by explicit consent, negotiation, safewords, and aftercare.
Erotic hypnosis
Erotic hypnosis, also called hypnofetishism, is a kink practice gaining erotic pleasure from hypnosis, mind control, or hypnotic suggestion; distinct from clinical sex hypnotherapy; studied mainly through Hughes's 83-participant 2023 dissertation and a 20,000-member FetLife community.
Erotic lactation
Erotic lactation is sexual arousal connected to lactation, usually via adult nursing by a partner. Key facts: prolactin and oxytocin physiology, conditioned let-down reflex, relactation and galactagogues, adult milk safety limits.
Erotic literature
Erotic literature, or erotica, is written work on sexual desire and activity, spanning novels, poetry, drama, and sex manuals; distinct from pornography, a word unrecorded in English before 1842, and shaped by obscenity law from the 1857 Act and Hicklin test to modern erotic romance.
Erotic massage
Erotic massage, also called sensual or sexual massage, is consensual touch in a sexual context, practiced privately between partners or commercially, and legally distinguished from licensed therapeutic massage.
Erotic photography
Erotic photography: camera images intended to inspire sexual feelings, distinguished from pornography and the academic nude by a contested spectrum. Began with 1839 daguerreotypes in Paris, censored from 1850, mass-market from Playboy 1953; modern law centers on consent and AI deepfakes.