spiny > define

adjective

• Having spines.
  • usage: "the dorsal fin is spinous"
  • synonyms: spinous
• Having or covered with protective barbs or quills or spines or thorns or setae etc..
  • usage: "a horse with a short bristly mane"; "bristly shrubs"; "burred fruits"; "setaceous whiskers"
  • synonyms: barbed, barbellate, briary, briery, bristled, bristly, burred, burry, prickly, setose, setaceous, thorny

• (a.) Fig.: Abounding with difficulties or annoyances.
• (n.) See Spinny.
• (a.) Full of spines; thorny; as, a spiny tree.
• (a.) Like a spine in shape; slender.