All articles starting with S

Syringomyelia

Syringomyelia, also called syringohydromyelia, is a spinal cord disorder in which a CSF-filled syrinx forms, usually with Chiari I malformation, trauma, or arachnoiditis; treated by foramen magnum decompression or shunting.

Syringomyelia or syringobulbia

Syringomyelia or syringobulbia (ICD-11 8D66) is a spinal cord or brainstem fluid-filled cavity (syrinx), usually from Chiari I malformation obstructing CSF flow; diagnosed by MRI, treated by decompression or shunting.

Syringophilidae

Syringophilidae, the quill mites, are permanent obligate mite ectoparasites living inside bird feather quills; two subfamilies, about 400-417 described species, high host specificity, all regions except Antarctica.

Syringopora

Syringopora (organ-pipe coral) is an extinct Goldfuss 1826 tabulate coral genus of loose, bush-like calcite tube colonies, order Auloporida, family Syringoporidae, living Ordovician to Permian and extinct at the end-Permian crisis.

Syringothyris

Syringothyris Winchell, 1863 is an extinct spire-bearing brachiopod genus (Syringothyrididae) with a diagnostic syrinx tube, ranging from the late Famennian to Serpukhovian, cosmopolitan, and a Lower Carboniferous index fossil.

Syrinx (Σύριγξ)

Syrinx (Σύριγξ) is the Greek nymph pursued by Pan and transformed into reeds, the origin myth of the syrinx or Pan pipes. Traced from Euripides' Helen and Theocritus' Syrinx to Ovid's Metamorphoses book 1.

Syrinx aruanus

Syrinx aruanus (accepted name Syrinx aruana), the false trumpet or Australian trumpet, is the largest living gastropod, a Turbinellidae snail of northern and western Australia reaching 91 cm, preying on large tubiculous polychaete worms.

Syriza (ΣΥΡΙΖΑ)

Syriza (ΣΥΡΙΖΑ, Coalition of the Radical Left, later SYRIZA-Progressive Alliance) is a Greek left-wing party founded in 2004 that governed 2015-2019 under Tsipras, then collapsed to single-digit polls and lost opposition status to PASOK in 2024.

Oct 22, 2026

Syrmian Front

The Syrmian Front (Сремски фронт) was a stabilized front line in Syrmia, between the Danube and the Sava, where Yugoslav Partisan forces fought retreating German troops from October 1944 to April 1945.

Syrn

Syrn is an American direct-to-consumer lingerie brand founded by actor Sydney Sweeney, launched January 27 and sold only through syrn.com, with backing from the private equity firm Coatue.

Syro

Syro (pronounced "sigh-ro") is the sixth Aphex Twin album by Richard D. James, released 19 September 2014 on Warp, his first in 13 years since Drukqs, winner of the 2015 Grammy for Best Dance/Electronic Album.

Sep 19, 2026

Syro-Ephraimite War

The Syro-Ephraimite War, also called the Syro-Ephraimitic War, was a conflict of c. 734–732 BC in which Damascus under Rezin and Israel under Pekah attacked Judah and besieged Jerusalem.

Sep 19, 2026

Syro-Hittite states

The Syro-Hittite states, also called Neo-Hittite kingdoms, were Iron Age kingdoms of northern Syria and southeast Anatolia that emerged after the Hittite empire collapsed around 1200 BC.

Syros Casino

Syros Casino (Καζίνο Σύρου), also Casino Aigaiou, a small land-based casino in Ermoupoli, Syros, Greece; opened Easter 1997 in two renovated neoclassical buildings, 27 tables and 185 slots; later listed as temporarily closed.

Syros Pharmaceuticals

Syros Pharmaceuticals, incorporated in 2011 as LS22, Inc. and Nasdaq-listed from 2016, was a Cambridge, Massachusetts biotech developing gene-control small molecules for cancer, including tamibarotene, before its 2025 wind-down.

Syrphidae

Syrphidae, commonly called hoverflies or flower flies, is a large family of flies whose adults often hover motionless and whose larvae range from aphid predators to saprophages.

Syrtis Major Planum

Syrtis Major Planum is a dark shield volcano on Mars, first drawn by Christiaan Huygens in 1659 as the first surface feature documented on another planet.

Syrup

Syrup: concentrated aqueous sucrose solution (USP 85% w/v, BP ≥45% m/m) used as a sweet, viscous oral dosage form or vehicle; simple vs medicated types; preserved by osmotic self-preservation near 65% w/w.

Syrup of ipecac

Syrup of ipecac, an emetic once kept in homes to induce vomiting after poison ingestion, causes vomiting within 20-30 minutes but shows no proven benefit, may reduce activated charcoal effectiveness, and is no longer manufactured or recommended.

Sep 19, 2026

syrup16g

syrup16g (シロップじゅうろくグラム) is a Japanese three-piece alternative rock band from Tokyo's Shimokitazawa scene, formed in 1996 around singer and guitarist Takashi Igarashi. It broke up after a 2008 Budokan farewell show and reunited in 2014.

SYS6006 (CSPC mRNA COVID-19 vaccine)

SYS6006 (Duentai, 度恩泰) is CSPC Pharmaceutical Group's mRNA COVID-19 vaccine, the first domestically developed mRNA vaccine granted emergency use in China (March 2023), based on prototype spike with BA.5 mutations; bivalent XBB.1.5/BQ.1 follow-up SYS6006.32 got EUA December 2023.

SYSA1801 (EO-3021)

SYSA1801 (EO-3021, CPO102), an anti-Claudin 18.2 MMAE antibody-drug conjugate (DAR 2) developed by CSPC and licensed to Elevation Oncology in 2022; Phase 1 trials in gastric and other CLDN18.2-positive solid tumors; development discontinued March 2025.

Sysco

Sysco Corporation, Houston-based foodservice distributor founded by John Baugh in 1969, is the world's largest food-away-from-home distributor with $84.6 billion fiscal 2026 sales, 333 distribution centers, and a pending $29.1 billion acquisition of Jetro Restaurant Depot.

Syskey

Syskey (the system key utility) was a Windows utility that encrypted account passwords in the SAM database and Active Directory Domain Services to protect them from offline attacks.

Syslog

Syslog is a standard protocol for conveying system and security log messages across IP networks to collectors, originally from BSD Unix and standardized in RFC 5424 in 2009.

Sysmac

Sysmac, short for System for Machine Automation Control, is Omron's trade name for its machine automation platform, first used on the company's programmable logic controllers introduced in 1971.

Sysmex

Sysmex (シスメックス) is a Japanese in vitro diagnostics company headquartered in Kobe, holding the leading global share in hematology testing with products sold in more than 190 countries.

Systat

Systat is a statistics and statistical graphics software package for personal computers, created by Leland Wilkinson in the late 1970s and sold to SPSS in 1995.

System

A system is an arrangement of parts that together exhibit behavior or meaning the individual parts do not, and it can be physical, conceptual, or both.