Z
z
noun
{bc}the 26th and last letter of the English alphabet
z
abbreviation
zero
Z
noun
{bc}{sx|z particle||}
Z
abbreviation
zenith distance
z-ax*is
noun
{bc}one of the axes in a three-dimensional rectangular coordinate system
z-co*or*di*nate
noun
{bc}a coordinate whose value is determined by measuring parallel to a z-axis
z distribution
noun
{bc}a probability density function and especially a normal distribution that has a mean equal to zero and a standard deviation equal to one and that is used especially in testing hypotheses about means or proportions of samples drawn from populations whose population standard deviations are known {dx}compare {dxt|z-test||}{/dx}
Z line
noun
{bc}any of the dark thin bands across a striated muscle fiber that mark the junction of actin filaments in adjacent sarcomeres
Z particle
noun
{bc}a neutral elementary particle about 90 times heavier than a proton that along with the W particle is a transmitter of the weak force
z-score
noun
{bc}{sx|standard score||}