Definition of Overlap

Babylon English Dictionary
extend over, cover a part of; have something in common
something that is superimposed
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Overlap Definition from Arts & Humanities Dictionaries & Glossaries
Glossary of Bookbinding Terms
See turn-in .
The part of the covering material which is turned in over the edges of the boards to protect them. It is a characteristic of all books except for some flush bindings.
Overlap Definition from Language, Idioms & Slang Dictionaries & Glossaries
Webster's Revised Unabridged Dictionary (1913)
(v. t. & i.)
To lap over; to lap.
  
(n.)
The lapping of one thing over another; as, an overlap of six inches; an overlap of a slate on a roof.
  
(n.)
An extension of geological beds above and beyond others, as in a conformable series of beds, when the upper beds extend over a wider space than the lower, either in one or in all directions.
  
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. About
hEnglish - advanced version

overlap
\o`ver*lap"\ (?), v. t. & i. to lap over; to lap.
overlap
\o"ver*lap`\ (?), n.
1. the lapping of one thing over another; as, an overlap of six inches; an overlap of a slate on a roof.
2. (geol.) an extension of geological beds above and beyond others, as in a conformable series of beds, when the upper beds extend over a wider space than the lower, either in one or in all directions.
overlap
n
1. a representation of common ground between theories or phenomena; "there was no overlap between their proposals" [syn: convergence, intersection]


2. the property of partial coincidence in time
3. a flap that lies over another part [syn: lap]
v 1: coincide partially 2: extend over and cover a part of; "the roofs of the houses overlap in this crowded city" 3: concur partially or wholly; "our vacations overlap"

4. have something in common

Concise English-Irish Dictionary v. 1.1
téigh thar a chéile
WordNet 2.0

Noun
1. a representation of common ground between theories or phenomena; "there was no overlap between their proposals"
(synonym) convergence, intersection
(hypernym) representation, mental representation, internal representation
(hyponym) crossroads
2. the property of partial coincidence in time
(hypernym) concurrence, coincidence, conjunction, co-occurrence
3. a flap that lies over another part; "the lap of the shingles should be at least ten inches"
(synonym) lap
(hypernym) flap
(hyponym) cuff, turnup

Verb
1. coincide partially or wholly; "Our vacations overlap"
(hypernym) coincide, co-occur, cooccur
(hyponym) share
2. extend over and cover a part of; "The roofs of the houses overlap in this crowded city"
(hypernym) cover, extend
(hyponym) imbricate
(derivation) lap
Overlap Definition from Business & Finance Dictionaries & Glossaries
Railroad-Related Terms
A section of track where the control length of a signal overlaps the next signal to reduce the risk of collision if the train fails in braking before the stop signal.
Overlap Definition from Government Dictionaries & Glossaries
DOD Dictionary of Military Terms
1. In photography, the amount by which one photograph includes the same area covered by another, customarily expressed as a percentage. The overlap between successive air photographs on a flight line is called “forward overlap.” The overlap between photographs in adjacent parallel flight lines is called “side overlap.” 2. In cartography, that portion of a map or chart that overlaps the area covered by another of the same series. 3. In naval mine warfare, the width of that part of the swept path of a ship or formation that is also swept by an adjacent sweeper or formation or is reswept on the next adjacent lap.
  
Source: U.S. Department of Defense, Joint Doctrine Division. ( About )
Overlap Definition from Science & Technology Dictionaries & Glossaries
Dictionary of Automotive Terms
1. The part of the spray band that covers the previous application of paint. A 50% overlap on each stroke is generally recommended.
2. The number of degrees of crankshaft rotation where the both the intake and exhaust valves are open at the same time. This situation will occur only at the end of the exhaust stroke and the beginning of the following intake stroke . Also see valve overlap .
Overlap Definition from Encyclopedia Dictionaries & Glossaries
Wikipedia English - The Free Encyclopedia
Overlap may mean one of:
  • In music theory, overlap is a synonym for reinterpretation of a chord at the boundary of two musical phrases.
  • In railway signalling, an Overlap (railway signalling) is the length of track beyond a stop signal that is proved to be clear of vehicles in the controls of the previous signal, as a safety margin.
  • Overlap (road), a place where multiple road numbers overlap.
  • Overlap add, an efficient convolution method using FFT.
  • Overlap coefficient, a similarity measure between sets.
  • Overlap, important concept in quantum mechanics describing a type of orbital interaction as described by the overlap integral. Overlap in molecules affects bond strength.

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Overlap Definition from Sports Dictionaries & Glossaries
Dictionary Soccer
A tactic used to move defenders and midfielders into attacking positions.