an|sistrō+ noun
Etymology: New Latin, from Greek ankistron fishhook + syrinx shepherd's pipe — more at syrinx
1. capitalized : a small genus (family Turritidae) of gastropod mollusks that occur in warm deep seas and have delicate steeply shouldered pale shells ringed with upward-curving spines
2. plural ancistrosyringes : any mollusk or shell of the genus Ancistrosyrinx