资料来源 : pyDict

轮形的,环状的环状软膏

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Cricoid \Cri"coid\ (kr?"koid), a. [Gr. ???? ring + -oid.]
   (Anat.)
   Resembling a ring; -- said esp. of the cartilage at the
   larynx, and the adjoining parts.