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.
N-COUNT
(政治、商業、社會等機構的)影響力，觸角
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.
例句
Free speech is being gradually eroded year after year by new tentacles of government control.言論自由正在一年又一年逐漸被政府不斷施加的影響力所削弱。