All articles starting with Z
3,498 articles
Zip line
Zipline (zip line, zip wire, flying fox): a pulley on an inclined steel cable ridden by gravity, used for recreation, canopy tours and cargo. Distinguished from Zipline, the drone delivery company.
Zip-a-Dee-Doo-Dah
Zip-a-Dee-Doo-Dah: Oscar-winning 1946 Disney song from Song of the South by Allie Wrubel and Ray Gilbert, sung by James Baskett as Uncle Remus; hit for Johnny Mercer and Bob B. Soxx, removed from Disneyland parades in 2023.
Zip2
Zip2, founded as Global Link Information Network, was an American software company that gave newspapers online city guides, maps, and directions; Compaq bought it in 1999 for $341 million.
Zipaltonal Fluctus
Zipaltonal Fluctus is a Venusian lava flow field (fluctus) in eastern Kawelu Planitia, emanating from Mist Chasma; IAU-named 1997 for the Nicaraguan creator goddess, ~80,000 km², digitate subparallel lobes up to 75 km.
Zipaquirá
Zipaquirá is a city in Cundinamarca, Colombia, about 50 km north of Bogotá, known for a salt mine worked since before the conquest and its underground Salt Cathedral.
Zipcar
Zipcar is an American car-sharing company founded in 2000 by Robin Chase and Antje Danielson in Cambridge, Massachusetts, and acquired by Avis Budget Group in 2013.
Zipeprol
Zipeprol (CAS 34758-83-3), a piperazine non-opioid antitussive sold as Respilene and Tusigen, was abused at high doses for hallucinogenic, opiate-like effects and placed in Schedule II of the 1971 Psychotropic Convention in 1995.
Zipf's law
Zipf's law, or the Zipfian distribution, states that a word's frequency in a text is roughly inversely proportional to its rank, named for George Kingsley Zipf.
Zipline (company)
Zipline is an American robotics company that designs and operates autonomous drone delivery networks, founded in 2014 and known for delivering most of Rwanda's blood supply outside its capital.
Ziply Fiber
Ziply Fiber is an American fiber internet provider serving Washington, Oregon, Idaho, and Montana, headquartered in Kirkland, Washington, and owned by Bell Canada since 2025.
Zippalanda
Zippalanda was a major Hittite cult city of the second millennium BC in central Anatolia, dedicated to a powerful Storm God and identified with Uşaklı Höyük near Yozgat.
Zippeite
Zippeite is a hydrated potassium uranyl sulfate mineral that forms yellow, fluorescent crusts in oxidized zones of uranium deposits; named in 1845 from Jáchymov in the Czech Republic.
Zipper
Zipper (slide fastener): clothing closure of two interlocking tooth rows joined by a slider. Evolved from Elias Howe's 1851 closure and Judson's 1893 clasp-locker to Sundback's 1917 Separable Fastener; named by B.F. Goodrich in 1923.
Zipper (film)
Zipper is a 2015 American political thriller-drama directed by Mora Stephens, starring Patrick Wilson as federal prosecutor Sam Ellis, whose escort addiction threatens his career and marriage. Premiered at Sundance January 2015; limited US release August 28, 2015; poorly reviewed (20% Tomatometer, Metascore 39).
Zippo
Zippo, also known as Zippo Lighter, is a brand of refillable, windproof pocket lighter made in Bradford, Pennsylvania, since 1933, backed by a lifetime guarantee.
Zipporah (צִפֹּרָה)
Zipporah (צִפֹּרָה, Tziporah) is the Midianite wife of Moses in the Hebrew Bible, daughter of the priest Jethro, mother of Gershom and Eliezer, and the woman who circumcised her son to stop a divine attack.
Zippy Fish
Zipporah "Zippy" Fish (born 2006) is an AFLW footballer for the Sydney Swans, drafted pick 5 in 2024 from East Fremantle; 2025 Rising Star winner, All-Australian, Noongar-Wongi-Larrakia player from Newman, WA.
Zippy the Pinhead
Zippy the Pinhead, Bill Griffith's surreal comic strip begun in Real Pulp Comics (1970), features a microcephalic muumuu-wearing protagonist; syndicated nationally by King Features since 1986 in over 200 newspapers, famous for 'Are we having fun yet?'
Ziprasidone
Ziprasidone (Geodon) is an atypical antipsychotic approved in 2001 for schizophrenia and 2004 for bipolar mania, with intramuscular use for agitation; notable for low weight gain but QTc prolongation and food-dependent absorption.
ZipRecruiter, Inc.
ZipRecruiter, Inc. is an American online employment marketplace connecting job seekers and employers through AI matching, founded in 2010 and publicly traded on the NYSE under the ticker ZIP.
ZipStorm, Inc.
ZipStorm, Inc. is a Delaware-incorporated technology company based in Bellevue, Washington, formed in 2015, led by CEO Anoop Gupta and identified with the AI recruiting platform SeekOut.
Ziqing Circuit (Pinglu army)
Ziqing Circuit (平卢淄青节度使), commonly called the Pinglu army, was a Tang dynasty military governorship held by Li Zhengji and his descendants, reaching 15 prefectures before its partition in 819.
Ziqing Jiedushi
Ziqing Jiedushi (淄青节度使), also called Pinglu Ziqing Jiedushi, was a Tang military commissionerate in Shandong, a semi-autonomous hereditary Li family regime until Emperor Xianzong destroyed it.
Ziram
Ziram (zinc bis(dimethylcarbamodithioate), CAS 137-30-4) is a dithiocarbamate contact fungicide used on fruits, nuts, and vegetables, also a rubber accelerator; EU approval expires 31 January 2027 and Canadian agricultural uses were cancelled in 2021.
Zircaloy
Zircaloy is a family of zirconium-tin alloys developed from the US naval reactor program for nuclear fuel cladding, where Zircaloy-2 serves boiling water reactors and Zircaloy-4 serves pressurized water reactors.
Zircon
Zircon, also known as zirconium orthosilicate, is a natural zirconium silicate mineral, ZrSiO4, the principal source of zirconium and hafnium and a gemstone prized for its fire.
Zircon geochronology
Zircon geochronology is a dating method that determines the ages of rocks by measuring uranium-lead isotope ratios in zircon crystals, which exclude lead when they form.
Zircon U–Pb dating
Zircon U–Pb dating is a geochronological method that measures uranium-to-lead isotope ratios in zircon crystals, dating igneous rocks and sediments with internal consistency checks from two decay chains.
Zirconium
Zirconium, symbol Zr and atomic number 40, is a hard, silvery, corrosion-resistant metal extracted from the mineral zircon and used chiefly as cladding for nuclear fuel.
Zirconium carbide
Zirconium carbide (ZrC) is a hard, gray, electrically conductive refractory ceramic with a melting point above 3500 °C, used in TRISO nuclear fuel coatings, hypersonic vehicles, and hard coatings.