dead angle
Invisible coverage gap
A dead angle is an area that cannot be seen from a particular vantage point—a blind spot in one's field of vision.
The term appears in military contexts for zones that cannot be covered by defensive fire: The attackers exploited a dead angle in the fortifications.
In everyday use, blind spot is more common.
Not perceived visually
- overlookedNot noticed or considered
- peripheralExternal computer add-on
- mirrorReflective viewing surface
- rearviewShowing what's behind
vehicles · drivers · motorists · traffic · awareness · check · road · safety
Fortified wall opening
- loopholeExploitable gap in rules
- casemateFortified gun enclosure
- bastionFortified defensive position
- parapetLow wall at edge
rampart · battlements · bunker · stronghold · citadel · redoubt · entrenchment · firing position
Surprise strike from concealment
- flankingAt the sides of
- exploitationSelfish use of others
- vulnerabilityOpenness to harm
- exposureState of being unprotected
maneuver · infiltration · surprise attack · envelopment · reconnaissance · positioning · approach · breach
Point where edges converge
- obtuseLacking mental sharpness
- acuteIntensely severe or perceptive
- reflexInvoluntary stimulus response
- interiorInside area or region
exterior · degrees · protractor · measurement · adjacent · supplementary · complementary · spatial
Image capturing device
- CCTVSurveillance camera network
- monitoringOngoing observation of something
- coverage gapUninsured interval within plan
- securityProtection from threat
unmonitored · detection · sensor · footage · perimeter · scanning · observation · patrol
unseen
Not perceived visually
- overlookedNot noticed or considered
- peripheralExternal computer add-on
- mirrorReflective viewing surface
rearview · vehicles · drivers · motorists · traffic · awareness · check · road · safety · visibility
embrasure
Fortified wall opening
parapet · rampart · battlements · bunker · stronghold · citadel · redoubt · entrenchment · firing position · defensive wall
ambush
Surprise strike from concealment
- flankingAt the sides of
- exploitationSelfish use of others
- vulnerabilityOpenness to harm
exposure · maneuver · infiltration · surprise attack · envelopment · reconnaissance · positioning · approach · breach · weak point
vertex
Point where edges converge
- obtuseLacking mental sharpness
- acuteIntensely severe or perceptive
- reflexInvoluntary stimulus response
interior · exterior · degrees · protractor · measurement · adjacent · supplementary · complementary · spatial · perspective
camera
Image capturing device
- CCTVSurveillance camera network
- monitoringOngoing observation of something
- coverage gapUninsured interval within plan
security · unmonitored · detection · sensor · footage · perimeter · scanning · observation · patrol