D defs.my
Entry 2 senses Webster, 1913

Extensive

/ĭk-stĕn'-sĭv/ · Ex·ten·sive · IPA /ɪkˈstɛn.sɪv/
01 a. Having wide extent; of much superficial extent; expanded; large; broad; wide; comprehensive; as, an extensive farm; an extensive lake; an e…
  1. 1.
    Having wide extent; of much superficial extent; expanded; large; broad; wide; comprehensive; as, an extensive farm; an extensive lake; an extensive sphere of operations; extensive benevolence; extensive greatness.
  2. 2.
    Capable of being extended.[Obs.]
    “Silver beaters choose the finest coin, as that which is most extensive under the hammer.” Boyle.