about-face
addition
approximation
differentiation
division
equation
evolution
extrapolation
integration
interpolation
involution
multiplication
notation
practice
proportion
reduction
reversal
reverse
reversion
subtraction
transformation
transposition
turn
turnabout
turning
volte-face
inverse
inverted rectifier
abnormalcy
abnormality
atmospheric phenomenon
chemical action
chemical change
chemical process
chromosomal mutation
gayness
genetic mutation
homoeroticism
homosexualism
homosexuality
motility
motion
move
movement
mutation
queerness
rhetorical device
variation
serialism
twelve tone technique
anomaly
antipathy
blindness
contradiction
decomposition
deviation
displacement
distortion
disturbance
hysteria
incongruity
insanity
magnetism
metamorphosis
modification
paradox
perversion
reconstruction
Persian
aspersion
aversion
conversion
dispersion
diversion
excursion
immersion
incursion
submersion
subversion
version