double

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double

1. (of flowers) having more than the normal number of petals
2. Maths
a. (of a root) being one of two equal roots of a polynomial equation
b. (of an integral) having an integrand containing two independent variables requiring two integrations, in each of which one variable is kept constant
3. Music
a. (of an instrument) sounding an octave lower than the pitch indicated by the notation
b. (of time) duple, usually accompanied by the direction alla breve
4. an actor who plays two parts in one play
5. Bridge a call that increases certain scoring points if the last preceding bid becomes the contract
6. Billiards Snooker a strike in which the object ball is struck so as to make it rebound against the cushion to an opposite pocket
7. a bet on two horses in different races in which any winnings from the horse in the first race are placed on the horse in the later race
8. Chiefly RC Church one of the higher-ranking feasts on which the antiphons are recited both before and after the psalms
9. Music an ornamented variation in 16th and 17th century music
10. 
a. the narrow outermost ring on a dartboard
b. a hit on this ring
References in periodicals archive ?
The designed single-ended and quasi-balanced frequency doublers were fabricated on a 0.
The earthlings repair their ship, but the two doublers who've befriended them refuse to leave with them.
Station Doubler is great when you need to share a PC or have remote access to your computer.
The passive Schottky diode doublers require no DC bias and utilize on-chip baluns matched closely with the diode bridge, leveraged from mixer products covering the same frequency range.
For maximum flexibility, the amplifier, mixer and the frequency doublers were manufactured in separate housings, allowing the customer to interconnect them in various configurations via K-connectors.
A detailed analysis for abrupt junction multipliers, including frequency doublers, has been performed [1] to establish performance limits and operating impedance levels in terms of basic device parameters.
A High Efficiency 40 GHz Power FET Frequency Doubler
The LM2791-H/L and LM2792-H/L are voltage doublers followed by a multiple output current mirror.
Unlike conventional line doublers, DRC bit-maps the original NTSC/standard definition (480i) signals and doubles the number of horizontal and vertical scanning lines --along with pixels per line--creating a 960i picture with four times the image resolution.
This new award-winning scan conversion technology allows connectivity to component 480i signals from DVD players and affords further versatility over outboard line doublers by allowing variable edge enhancement and control of color and tint.
Unlike most projectors where line doublers or quadruplers are an expensive option necessary to help eliminate visible scanning lines, the built-in DRC circuitry doubles the number of active scanning lines, and it also doubles the number of pixels on each scanning line.