z:1

noun
z \ ˈzē \ ˈzed \ ˈi-zərd \
before 12th century{ds||1|a|}
  • the 26th and last letter of the English alphabet
  • a graphic representation of this letter
  • a speech counterpart of orthographic z

z:2

abbreviation
z \
  • zero
  • zone

Z:1

noun
Z \
1967
  • z particle

Z:2

abbreviation
Z \
  • zenith distance

z-axis

noun
z-ax*is \ ˈzē-ˌak-səs \ ˈzed- \
1929
  • one of the axes in a three-dimensional rectangular coordinate system

z-coordinate

noun
z-co*or*di*nate \ ˌzē-kō-ˈȯrd-nət \ -ˈȯr-də-nət \ -də-ˌnāt \ ˌzed- \
circa 1956
  • a coordinate whose value is determined by measuring parallel to a z-axis

z distribution

noun
z distribution \
1968
  • 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

Z line

noun
Z line \
1916
  • any of the dark thin bands across a striated muscle fiber that mark the junction of actin filaments in adjacent sarcomeres

Z particle

noun
Z particle \
1979
  • a neutral elementary particle about 90 times heavier than a proton that along with the W particle is a transmitter of the weak force —called also Z0, Z0 particle

z-score

noun
z-score \ ˈzē-ˌskȯr \
1966
  • standard score
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