Ground Wave Definitions

Useful Words

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Lift : ابھار , Heterodyne : فریکوئنسی بنانا , Riffle : لہر , Reflection : انعکاس , Acoustic Radiation Pressure : آواز کا دباو , Billow : موج , Air Wave : ہوا کی لہر , Heat Wave : گرمی کی لہر , Beckon : اشارے سے بلانا , Cold Wave : سرد کی لہر , Acoustic Wave : صوتی لہر , Crest : فراز , Roll : بڑی لہر , Backwash : کشتی سے بننے والی لہریں , Spectrum : طیف , Hertzian Wave : مقناطیسی لہر , White Horse : سمندر کی جھاگ والی لہر , Tsunami : سمندری زلزلے سے ابھرنے والی بہت بڑی لہر , Refraction : انعطاف , Tidal Wave : مدوجزر کی لہر , Sonic Boom : صوتی دھماکا , Aegir : بڑی اور خطرناک لہر , Microwave : ایک چولہا , Bunker : زیر زمین محفوظ کمرہ , Aboveground : سطح سے اوپر , Settle : پر لگ جانا , Trail : لتھیڑنا , Metro : زمین دوز برقی ریل , Cave : غار , Outcrop : ابھر ا ہوا حصہ , Turf : گھاس سے ڈھکی ہوئی زمین

Useful Words Definitions

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Lift: a wave that lifts the surface of the water or ground.

Heterodyne: combine (a radio frequency wave) with a locally generated wave of a different frequency so as to produce a new frequency equal to the sum or the difference between the two.

Riffle: a small wave on the surface of a liquid.

Reflection: the phenomenon of a propagating wave (light or sound) being thrown back from a surface.

Acoustic Radiation Pressure: (acoustics) the pressure exerted on a surface normal to the direction of propagation of a sound wave.

Billow: a large sea wave.

Air Wave: a sound wave that is transmitted via air.

Heat Wave: a wave of unusually hot weather.

Beckon: summon with a wave, nod, or some other gesture.

Cold Wave: a wave of unusually cold weather.

Acoustic Wave: (acoustics) a wave that transmits sound.

Crest: the top line of a hill, mountain, or wave.

Roll: a long heavy sea wave as it advances towards the shore.

Backwash: the wave that spreads behind a boat as it moves forward.

Spectrum: an ordered array of the components of an emission or wave.

Hertzian Wave: an electromagnetic wave generated by oscillations in an electric circuit.

White Horse: a wave that is blown by the wind so its crest is broken and appears white.

Tsunami: a cataclysm resulting from a destructive sea wave caused by an earthquake or volcanic eruption.

Refraction: the change in direction of a propagating wave (light or sound) when passing from one medium to another.

Tidal Wave: a wave resulting from the periodic flow of the tides that is caused by the gravitational attraction of the moon and sun.

Sonic Boom: an explosive sound caused by the shock wave of an airplane traveling faster than the speed of sound.

Aegir: a high wave (often dangerous) caused by tidal flow (as by colliding tidal currents or in a narrow estuary).

Microwave: kitchen appliance that cooks food by passing an electromagnetic wave through it; heat results from the absorption of energy by the water molecules in the food.

Bunker: a fortification of earth; mostly or entirely below ground.

Aboveground: on or above the surface of the ground.

Settle: settle into a position, usually on a surface or ground.

Trail: drag loosely along a surface; allow to sweep the ground.

Metro: an electric railway operating below the surface of the ground (usually in a city).

Cave: a geological formation consisting of an underground enclosure with access from the surface of the ground or from the sea.

Outcrop: appear on the surface, come to the surface on the ground.

Turf: cover (the ground) with a surface layer of grass or grass roots.