D defs.my
Entry 2 senses Webster, 1913

Fugacious

· Fu·ga·cious · IPA /fjuːˈɡeɪ.ʃəs/
01 a. Flying, or disposed to fly; fleeing away; lasting but a short time; volatile.
  1. 1.
    Flying, or disposed to fly; fleeing away; lasting but a short time; volatile.
    “Much of its possessions is so hid, so fugacious, and of so uncertain purchase.” Jer. Taylor.
  2. 2.
    Fleeting; lasting but a short time; -- applied particularly to organs or parts which are short-lived as compared with the life of the individual.(Biol.)