Dart sac

(Zool.)

a sac connected with the reproductive organs of land snails, which contains a dart, or arrowlike structure.

dart sac

[′därt ‚sak] (invertebrate zoology) A dart-forming pouch associated with the reproductive system of certain snails.

dart sac

a sac branching from the vagina of snails which contains a dart that is shot out prior to copulation between two snails, so that the darts from each penetrate the tissues of the other.

随便看

advisory committee on services to hearing impaired people
advisory committee on smaller public companies
advisory committee on social witness policy
advisory committee on student affairs
advisory committee on student financial assistance
advisory committee on technology innovation
advisory committee on the application of science and technology to development
advisory committee on the international space station
advisory committee on the marine environment
advisory committee on the official residences of canada
advisory committee on trade policy and negotiations
advisory committee on training in nursing
advisory committee on training in primary care medicine
advisory committee on undersea features
advisory committee on water information
advisory committee on x-ray and radium protection
advisory committee to the director
advisory compliance message
advisory conciliation and arbitration service
advisory, conciliation and arbitration service
advisory, conciliation, and arbitration service
advisory control
advisory council
advisory council board
advisory council for administrative professionals

英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。