To droop means to hang down, to sag, particularly if limp. Droop may refer to:

Technical usage

Droop nose (aeronautics) The droop nose or drooped nose is a feature fitted to a small number of aircraft designs, the majority of these being also equipped with delta wings and capable of supersonic speeds. It is typically fitted upon an aircraft that possesses a s ...

, an adjustable nose found on some supersonic aircraft *

Droop quota The Droop quota is the quota most commonly used in elections held under the single transferable vote (STV) system. It is also sometimes used in elections held under the largest remainder method of party-list proportional representation (list PR) ...

, a type of quota for counting and transferring votes in an election *

Droop speed control Droop speed control is a control mode used for AC electrical power generators, whereby the power output of a generator reduces as the line frequency increases. It is commonly used as the speed control mode of the governor of a prime mover driving ...

, a speed control mode of a prime mover driving a synchronous generator connected to an electrical grid. *

Leading-edge droop flap The leading-edge droop flap is a device on the leading edge of aircraft wings designed to improve airflow at high pitch angles (high angle of attack). The droop flap is similar to the leading-edge slat and the Krueger flap, but with the differe ...

, a type of high-lift device found on the wings of some aircraft *

Leading-edge droop The leading edge of an airfoil surface such as a wing is its foremost edge and is therefore the part which first meets the oncoming air.Crane, Dale: ''Dictionary of Aeronautical Terms, third edition'', page 305. Aviation Supplies & Academics, ...

, a feature of some aircraft wings * LED droop, the lowering of efficiency of light-emitting diodes at higher electrical currents * The

steady-state error A proportional–integral–derivative controller (PID controller or three-term controller) is a control loop mechanism employing feedback that is widely used in industrial control systems and a variety of other applications requiring continuou ...

of a proportional controller *

Voltage droop Voltage droop is the intentional loss in output voltage from a device as it drives a load. Adding droop in a voltage regulation circuit increases the headroom for load transients. All electrical systems have some amount of resistance between ...

, the intentional loss in output voltage of a power supply as it drives a load

People

Marie Luise Droop Marie Luise Droop (15 January 1890 – 22 August 1959) was a German writer, director and producer. Biography Marie Martha Luise Fritsch was born on 15 January 1890 in Stettin. Her father was Karl Georg Fritsch, manager of a cement factory, her m ...

(1890-1959), a German writer and producer *

Henry Richmond Droop Henry Richmond Droop (12 September 1832 – 21 March 1884) was an English mathematician. He devised the Droop quota used in the Single Transferable Vote. He also may have been the first to write down what later became known as Duverger's Law, i ...

(1831–1884), an English mathematician *

John Percival Droop John Percival Droop (4 October 1882 – 26 September 1963, in Vence, France) was a British classical archaeologist of Dutch descent. After attending Marlborough College and Trinity College, Cambridge, Droop became a student of the British Sch ...

(1882–1963), a British classical archaeologist *

Droop-E Earl Tywone Stevens Jr. (born February 18, 1988), better known by his stage name Droop-E, is an American rapper, and producer. He is the son of the Bay Area rapper E-40. Biography Droop-E was born Earl Tywone Stevens Jr. on February 18, 19 ...

, American rapper

Fictional characters

Droopy Droopy is an animated character from the golden age of American animation. He is an anthropomorphic white Basset Hound with a droopy face; hence his name. He was created in 1943 by Tex Avery for theatrical cartoon shorts produced by the Metr ...

, cartoon character * Drooper, a character from the television show ''

The Banana Splits ''The Banana Splits'' is an American television variety show produced by Hanna-Barbera Productions and featuring the Banana Splits, a fictional rock band composed of four costumed animal characters in red marching band hats with yellow plume ...

'' * Droop, a muppet character from the television series ''The Muppet Show'' *

Droop-a-Long ''Ricochet Rabbit & Droop-a-Long'' was a segment of Hanna-Barbera's 1964–1966 cartoon ''The Magilla Gorilla Show'', and later appeared on ''The Peter Potamus Show''. Background Taking place in a Wild West setting, Ricochet Rabbit (voiced by Do ...

, a cartoon character from the segment ''Ricochet Rabbit & Droop-a-Long'' in ''The Magilla Gorilla Show''

Places

Droop, West Virginia Droop is an unincorporated community in Pocahontas County, West Virginia, United States, in the Greenbrier River Valley. The community takes its name from nearby Droop Mountain. The area lends its name to Droop Mountain Battlefield State Park, s ...

Droop Hill Droop Hill is a mountain landform in the Kincardine and Mearns region of Aberdeenshire, Scotland. The locale had been featured in a windfarm proposal submitted to the Aberdeenshire Council.Droop Hill, 2006 See also *Drumtochty Castle *Glenbervie ...

, a mountain landform in the Kincardine and Mearns region of Aberdeenshire, Scotland *

Droop Mountain Droop Mountain is a small mountain in the Allegheny Mountains on the border of Greenbrier and Pocahontas counties in southeastern West Virginia. It was the scene of one of West Virginia's most important battles during the American Civil War—t ...

, a small mountain in the Allegheny Mountains in West Virginia, United States

Other uses

Ptosis (disambiguation) Ptosis (from the Greek: πτῶσις 'falling', 'a fall', 'dropped') refers to droopiness or abnormal downward displacement of a body part or organ. Particular cases include: * Ptosis (eyelid) * Ptosis (chin) * Ptosis (breasts) * Visceroptosis, ...

, drooping of body parts * Droop cup, a type of bowl from Ancient Greece / Laconia, named after John Percival Droop