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Initialism of zenith distance.
Definition source: English Wiktionary via Wiktextract
Usage: abbreviation, alt-of, countable, initialism, uncountable
Examples
- limit in zenith distance ZD: ZD < 70° --European Southern Observatory
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Initialism of zero defects.
Definition source: English Wiktionary via Wiktextract
Usage: abbreviation, alt-of, countable, initialism, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
No etymology was provided for this word.