lentiform

Từ điển WordNet v3.1 - WordNet Dictionary

adjective

convex on both sides;
shaped like a lentil
• Syn:
biconvex, convexo-convex, lenticular
• Similar to:
convex, bulging

• Từ đồng nghĩa / Synonyms:
  biconvex, convexo-convex, lenticular