1. Having spines
   "the dorsal fin is spinous"
   - spiny 
2. Shaped like a spine or thorn
   - acanthoid, acanthous

See also: pointed, spine

Antonym: spineless

• anabasis
• anabatic
• anabiosis
• anabiotic
• anabolic
• anabolic steroid
• anabolism
• Anabrus
• Anabrus simplex
• Anacanthini
• Anacardiaceae
• Anacardium
• Anacardium occidentale
• anachronic
• anachronism
• anachronistic
• anachronistically
• anachronous
• Anacin III
• anaclinal
• anaclisis
• anaclitic
• anaclitic depression
• anacoluthia
• anacoluthic