1 N-COUNT [usually plural] (章鱼等的)触须，触手，触角 The tentacles of an animal such as an octopus are the long thin parts that are used for feeling and holding things, for getting food, and for moving. (章鱼等的)触须，触手，触角

2 N-COUNT [usually plural] (政治、商业、社会等机构的)影响力，触角 If you talk about the tentacles of a political, commercial, or social organization, you are referring to the power and influence that it has in the outside community. (政治、商业、社会等机构的)影响力，触角 [disapproval]