ZD

See also: z d.

English

Noun

ZD (countable and uncountable, plural ZDs)

1. Initialism of zenith distance.

   z_t is now ZD (true zenith distance)

   --California Institute of Technology

   limit in zenith distance ZD: ZD < 70°

   --European Southern Observatory

2. Initialism of zero defects.

References

• Acronym Finder Accessed February 14, 2006.

Anagrams

• DZ, dz