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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 ?
Oral Examinations: The National Institute of Dental and Craniofacial Research (NIDCR) caries diagnostic criteria for oral health surveys include guidance for assessing the presente or absence of pit and fissure sealants (14).
Despite this support, pit and fissure sealants are not being used optimally.
Comparison of antibacterial properties of two fluoride-releasing and a nonfluoride-releasing pit and fissure sealants.
In 1983, controversy arose over the utilization of dental hygienists to place pit and fissure sealants in the New Mexico project.
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.
Traditionally, fluoride application has been contraindicated prior to the placement of pit and fissure sealants.
Simonsen RJ: Cost effectiveness of pit and fissure sealant at 10 years.
Table 2 The Effect of Pit and Fissure Sealant Placement on Occlusal Caries Detection.
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.
For example, pit and fissure sealants will register strong gains due to their use in the prevention of cavities.
At the mobile clinic, children will receive prophylaxis, fluoride, toothbrush instruction, X-rays, fillings, stainless steel crowns, extractions, composite fillings and pit and fissure sealants as needed.