a vibration of large amplitude produced by a relatively small vibration near the same frequency of vibration as the natural frequency of the resonating system
resonance
Noun
an excited state of a stable particle causing a sharp maximum in the probability of absorption of electromagnetic radiation
resonance
Noun
a relationship of mutual understanding or trust and agreement between people
reverberance
Noun
having the character of a loud deep sound
ringing
Noun
having the character of a loud deep sound
ringing
Noun
the giving of a ring as a token of engagement
ringing
Noun
the sound of a bell ringing
rhythmicity
Noun
the rhythmic property imparted by the accents and relative durations of notes in a piece of music
rancidness
Noun
the property of being rancid
redolence
Noun
a pleasingly sweet olfactory property
rankness
Noun
the attribute of having a strong offensive smell
rankness
Noun
the property of producing abundantly and sustaining vigorous and luxuriant growth
reddish brown
Noun
a shade of brown with a tinge of red
racketiness
Noun
the auditory effect characterized by loud and constant noise
raw sienna
Noun
a medium to dark tan color
raw sienna
Noun
a yellowish-brown pigment made from untreated sienna
roundness
Noun
the bodily property of being well rounded
roundness
Noun
the property possessed by a line or surface that is curved and not angular
roundness
Noun
the quality of being round numbers
roundness
Noun
the fullness of a tone of voice
rolypoliness
Noun
the property of having a plump and round body
room temperature
Noun
the normal temperature of room in which people live
rest mass
Noun
(physics) the mass of a body as measured when the body is at rest relative to an observer, an inherent property of the body
relativistic mass
Noun
(physics) the mass of a body in motion relative to the observer: it is equal to the rest mass multiplied by a factor that is greater than 1 and that increases as the magnitude of the velocity increases
relative atomic mass
Noun
(chemistry) the mass of an atom of a chemical element expressed in atomic mass units
relative molecular mass
Noun
(chemistry) the sum of the relative atomic masses of the constituent atoms of a molecule
red heat
Noun
the heat or the color of fire
raininess
Noun
(of weather) the badness of the weather
reporting weight
Noun
a person's body weight (as an athlete's) at the beginning of the season (when first reporting for practice)
reluctivity
Noun
(physics) the resistance of a material to the establishment of a magnetic field in it
resilience
Noun
the physical property of a material that can return to its original shape or position after deformation that does not exceed its elastic limit
resilience
Noun
an occurrence of rebounding or springing back
resiliency
Noun
the physical property of a material that can return to its original shape or position after deformation that does not exceed its elastic limit
resiliency
Noun
an occurrence of rebounding or springing back
reverberation
Noun
the repetition of a sound resulting from reflection of the sound waves
reverberation
Noun
a remote or indirect consequence of some action
re-echo
Noun
the echo of an echo
refractivity
Noun
the physical property of a medium as determined by its index of refraction
refractiveness
Noun
the physical property of a medium as determined by its index of refraction
radial symmetry
Noun
the property of symmetry about an axis
radio frequency
Noun
an electromagnetic wave frequency between audio and infrared
rain
Noun
anything happening rapidly or in quick successive
rain
Noun
water falling in drops from vapor condensed in the atmosphere
rain
Noun
drops of fresh water that fall as precipitation from clouds
rain
Verb
precipitate as rain
radial asymmetry
Noun
the absence of symmetry about an axis
right-handedness
Noun
preference for using the right hand
rate
Noun
the relative speed of progress or change
rate
Noun
amount of a charge or payment relative to some basis