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1. the pit hell
2. the area that is occupied by the orchestra in a theatre, located in front of the stage
3. Anatomy
a. a small natural depression on the surface of a body, organ, structure, or part; fossa
b. the floor of any natural bodily cavity
4. Pathol a small indented scar at the site of a former pustule; pockmark
5. any of various small areas in a plant cell wall that remain unthickened when the rest of the cell becomes lignified, esp the vascular tissue
6. a working area at the side of a motor-racing track for servicing or refuelling vehicles
7. a rowdy card game in which players bid for commodities
8. an area of sand or other soft material at the end of a long-jump approach, behind the bar of a pole vault, etc., on which an athlete may land safely
9. the ground floor of the auditorium of a theatre
10. another word for pitfall


Chiefly US and Canadian
the stone of a cherry, plum, etc.



a shallow (up to 25 m deep) vertical or, less often, inclined mining excavation that is sunk from the surface. Pits are used for various purposes, such as the exploration of mineral deposits, ventilation, the raising of water, the hauling of materials, and the lowering and hoisting of people.

What does it mean when you dream about a pit?

A pit is something we fall into, get stuck in, and have difficulty getting out of, so dreaming about being in a pit could reflect these feelings. We also talk about being in a “bottomless pit” or taking a “pit stop.” (See also Cave, Hole).


A cavity in the secondary wall of a plant cell, formed where secondary deposition has failed to occur, and the primary wall remains uncovered; two main types are simple pits and bordered pits.
The stone of a drupaceous fruit.
A small hole in the surface of a metal; usually caused by corrosion or formed during electroplating operations.
(mining engineering)
A coal mine; the term is not commonly used by the coal industry, except in reference to surface mining where the workings may be known as a strip pit.
Any quarry, mine, or excavation area worked by the open-cut method to obtain material of value.


2. A small circular hole in a paint film; also See pockmarking.
3. An excavation; a hole in the ground.


the Board of Trade’s cellar, where all bidding occurs. [Am. Lit.: The Pit. Magill I, 756–758]


Language for IBM 650. (See IT).


An indentation in an optical medium such as a CD-ROM or DVD. The laser beam is either absorbed in the pit or reflects off the non-indented areas, which are called "lands." Using various algorithms, the reflections are converted into 0 and 1 bits.

Pits and Lands
This microscopic view of a CD-ROM and DVD disc compares the track density and pits and lands, which account for 7.5 times as much data on the DVD. (Image courtesy of C-Cube Microsystems.)
References in periodicals archive ?
The primary objective of this study was to estimate the prevalence of pit and fissure sealants on first permanent molars in twelve year olds living in Puerto Rico during 1997 and to further evaluate dental sealant prevalence by 1) urban/rural and public/private school status, as well as, 2) gender.
In 1984, almost 15 years after the first provisional acceptance of pit and fissure sealants by the ADA, Frazier[41] acknowledged consumers' lack of awareness of the availability and efficacy of sealants.
Wear resistance of flowable composites as pit and fissure sealants. J Dent Res.
Because of limited information for primary teeth, researchers studied children enrolled in Tennessee Head Start during the 1984-1985 academic year to evaluate the retention of pit and fissure sealants on primary molars, 6 to 24 months post-eruption.
Since the 1983 NIH Consensus Development Conference on Dental Sealants, it has been widely accepted that pit and fissure sealants are highly effective in preventing dental caries, regardless of whether they are applied by appropriately trained dentists, dental hygienists, or dental assistants.
[18.] Jensen OE, Billings RJ, Featherstone JD: Clinical evaluation of FluroShield pit and fissure sealant. Clin Prev Dent 1990;12:24-27.
[19.] Jensen OE, Billings RJ, Featerstone JD: Clinical evaluation of fluorshield pit and fissure sealant. Clin Prev Dent 1990;12:24-27.
Table 2 The Effect of Pit and Fissure Sealant Placement on Occlusal Caries Detection.
Pit and fissure sealants have been applied for the prevention of occlusal caries since the 1970s (5-7).
Dental sealants, also referred to as pit and fissure sealants, are a fast and easy way of protecting your and your child's teeth.
Pit and fissure sealants are a plastic coating applied to the biting surface of the tooth, which helps prevent the harbouring of decay causing bacteria.
Pit and fissure sealants are a plastic coating applied to the biting surface of the tooth and helps prevent the harbouring of decay causing bacteria.