An abbreviation combining 'fld' (field) and 'ext' (extension), used in formal documentation to denote a field's extended area or section.
Modern technical abbreviation formed in mid-20th century administrative and surveying practice, combining two shortened forms for compound efficiency.
Abbreviations layered on abbreviations—'fldxt' shows how technical jargon can become almost unreadable to outsiders, creating exclusive language in specialized fields like surveying and real estate.
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