An obsolete or extremely rare technical term with unclear modern usage; possibly a variant or acronym in medical contexts.
Unknown or highly specialized origin; this term appears so rarely in English records that its etymology and precise meaning remain unclear to modern lexicographers.
Finding 'adtevac' in a dictionary is like archaeological work—it's so obscure that even etymologists aren't certain whether it's a real word, a misspelling, or a technical term that died with its profession.
Complete word intelligence in one call. Free tier — 50 lookups/day.