3.  the act of excluding a player from selection in a squad even when they were included in the most recent prior selection. Dropper
Obsolete term for a delivery by lob bowling, or a bowler who employed this style. Common in the 19th century, this form of bowling is now usually illegal. Drop-in pitch
a temporary pitch that is cultivated off-site from the field which also allows other sports to share the use of the field with less chance of injury to the players. DRS
see Umpire Decision Review System

Duck
a batsmans score of nought (zero) dismissed, as in "he was out for a duck." It can refer to a score of nought not out during an innings, as in "she hasnt got off her duck yet", but never refers to a completed innings score of nought not out. Originally called a "ducks egg" because of the "0" shape in the scorebook. ( see Golden, Diamond, and Platinum duck )

Duck under delivery
a short pitched delivery that appears to be a bouncer, making the striker duck to avoid from being hit; but instead of bouncing high, it has a low bounce which causes the batsman to be dismissed LBW, or occasionally bowled. Duckworth-Lewis method (D/L)
(or Duckworth-Lewis-Stern method, DLS)
a rain rule used if a limited overs match is curtailed by bad weather. If the match cannot be completed, the Duckworth-Lewis method determines the winner, or if the match can be continued but needs to be shortened, it calculates a revised target for the team batting second.
Middle order
the batsmen who bat at between roughly number 5 and 7 in the batting order. Often includes all-rounders and the wicket-keeper. Mid-off
a fielding position intended to save a run on the off side, located in front of, and relatively close to, the line of the wicket. Mid-on
a fielding position intended to save a run on the leg side, located in front of, and relatively close to, the line of the wicket. Mid-wicket
a fielding position intended to save a run on the leg side, located between mid-on and square leg. Military medium
medium-pace bowling that lacks the speed to trouble the batsman. Often has derogatory overtones, suggesting the bowling is boring, innocuous, or lacking in variety, but can also be a term of praise, suggesting a military regularity and lack of unintended variation. A good military medium bowler will pitch the ball on the same perfect line and length for six balls an over, making it very hard for the batsman to score runs. Milking (or milk the bowling)
Scoring a steady stream of easy runs at a moderate rate with little risk of getting out, by taking advantage of poor bowling or gaps in the field. Particularly common against spin bowling in limited overs matches, due to the circle restrictions. Mine 
see call

Mis-field
a fielder failing to collect the ball cleanly, often fumbling a pick-up or dropping a catch. Mullygrubber
(Australian) see grubber

N
Negative bowling
a persistent line of bowling down the leg-side of a batsman to stymie the batsman from scoring (particularly in Test matches).