Science and technology

• An abbreviation for gyroscope
  Gyroscope
  A gyroscope is a device for measuring or maintaining orientation, based on the principles of angular momentum. In essence, a mechanical gyroscope is a spinning wheel or disk whose axle is free to take any orientation...
  
  , an orientation-stabilizing device
• An abbreviation for autogyro
  Autogyro
  An autogyro , also known as gyroplane, gyrocopter, or rotaplane, is a type of rotorcraft which uses an unpowered rotor in autorotation to develop lift, and an engine-powered propeller, similar to that of a fixed-wing aircraft, to provide thrust...
  
  , a type of rotary-wing aircraft
• The casually used brand name of a detangler
  Detangler
  The detangler or rotor is an invention for the Freestyle BMX bicycle, allowing the handlebars to turn a complete 360° rotation without the brake cables getting tangled up. It is commonly called the Gyro. The trademark for the term Gyro is owned by Odyssey BMX, of Cerritos, California...
  
   mechanism, part of a stunt-adapted BMX bicycle
• An abbreviation for Gyrodactylus salaris
  Gyrodactylus salaris
  Gyrodactylus salaris is a small monogenean ectoparasite which mainly lives on the skin of freshwater fish, especially Atlantic salmon. This species is a leech-like parasite that has been implicated in some diminution of Atlantic salmon populations in the Norwegian fjords. Its common name is Salmon...
  
  , a parasite in salmon
• Honda Gyro, a family of tilting three wheel vehicles
• GYRO
  GYRO
  GYRO is a computational plasma physics code developed and maintained at General Atomics. It solves the 5-D coupled gyrokinetic-Maxwell equations using a combination of finite difference, finite element and spectral methods. Given plasma equilibrium data, GYRO can determine the rate of turbulent...
  
  , a computer program for tokamak plasma simulation
• Plexao Gyro, a OS created to be used anywhere created by Plexao

Advertising Agency

• gyro, is a global ideas shop with 600 employees in 17 offices in nine countries

Food and meals

• Gyro, a pita sandwich or the rotisserie cooked meat it contains

Books and comic books

• Gyro Gearloose
  Gyro Gearloose
  Gyro Gearloose is a fictional character, an anthropomorphic chicken created by Carl Barks for The Walt Disney Company. He is part of the Scrooge McDuck universe, appearing in comic book stories as a friend of Donald Duck, Scrooge and anyone who is associated with them. He was also a frequent star...
  
  , a comic-book character
• 'Gyro', a stimulant drug appearing in the science fiction novel The Puppet Masters
  The Puppet Masters
  The Puppet Masters is a 1951 science fiction novel by Robert A. Heinlein in which American secret agents battle parasitic invaders from outer space...
  
  by Robert A. Heinlein
  Robert A. Heinlein
  Robert Anson Heinlein was an American science fiction writer. Often called the "dean of science fiction writers", he was one of the most influential and controversial authors of the genre. He set a standard for science and engineering plausibility and helped to raise the genre's standards of...
  
  
• Gyro Zeppeli
  Gyro Zeppeli
  , birth name , is a fictional character from the Japanese manga JoJo's Bizarre Adventure. In Steel Ball Run's alternate universe version of the world, he most likely takes the place of Will A. Zeppeli, Caesar Anthonio Zeppeli or another previously unseen member of the Zeppeli family...
  
  , one of the main characters of the manga Steel Ball Run
  Steel Ball Run
  is a seinen manga series by Hirohiko Araki. Originally presented as an unrelated story, this series was officially declared a part of the JoJo's Bizarre Adventure storyline. The series stars Gyro Zeppeli, who uses a set of steel balls that spin incredibly fast, and Johnny Joestar, a former hot-shot...
  
  .

Sports

• A nickname for the rumored baseball pitch, the gyroball
  Gyroball
  A gyroball is a type of baseball pitch used primarily by players in Japan.-Overview:The gyroball pitch was first identified by the Japanese scientist Ryutaro Himeno , and later developed into a specific throwing technique by baseball instructor Gitau Kimani , who used computer simulations to create...
  
  
• Gyroscopic exercise tool
  Gyroscopic exercise tool
  A gyroscopic exercise tool is a device used to exercise the wrist as part of physical therapy or in order to build palm, forearm and finger strength. It can also be used as a unique demonstration of some aspects of rotational dynamics...
  
  , or Powerball exercise tool

Other uses

• Gyro
  Gyro (magazine)
  Gyro is the official magazine of its owners the Otago Polytechnic Students' Association at Otago Polytechnic in Otago, New Zealand. Gyro is a member of the Aotearoa Student Press Association , and was the first polytechnic publication to fully join.Gyro is printed monthly and covers news,...
  
  student magazine of Otago Polytechnic, New Zealand