balling-iron

名词 n.
中文释义

英文释义

名词 n.
  1. A piece of shaped metal that forces the mouth of an animal to stay open.
    — After a due examination of the mouth has been made, and we have selected the tooth to be operated upon, the animal should be restrained by means of a twitch, and a balling-iron ought then to be placed in the mouth . The common open balling-iron will answer the purpose, but the one I would recommend you to use is that invented by Mr. Varnell .

词形变化

balling-irons plural

词源

Named for its original use in forcing open the mouth of an animal for balling.
0 次浏览 数据来源: Wiktionary