D defs.my
Entry 2 senses Webster, 1913

Thorny

/thôr'-nē/ · Thorn·y · IPA /ˈθɔɹni/
01 a. Full of thorns or spines; rough with thorns; spiny; as, a thorny wood; a thorny tree; a thorny crown.
  1. 1.
    Full of thorns or spines; rough with thorns; spiny; as, a thorny wood; a thorny tree; a thorny crown.
  2. 2.
    Like a thorn or thorns; hence, figuratively, troublesome; vexatious; harassing; perplexing.
    “The steep and thorny way to heaven.” Shak.
Phrases & compounds
Thorny rest-harrow — rest-harrow.
Thorny trefoil — a prickly plant of the genus Fagonia (Fagonia Cretica, etc.).