(physics, used mostly in plural) One vessel in a system of containers filled with a homogeneous fluid, connected at the base and subjected to the same atmospheric pressure.

plural of intelligence community

(botany, ecology) a group of plants of different species which coexist in a habitat under certain conditions, and that may be mutually dependent on each other.

plural of plant community

A residential area with restricted access, such as by a locked gate or guard post

The technique of assisting a person with a disability to communicate by helping them to point out letters of the alphabet on a board so as to spell a message.

plural of anti-communism

plural of bedroom community

An academic field that deals with processes of communication, commonly defined as the sharing of symbols over distances in space and time.

(computing) A set of techniques for the exchange of data among two or more threads in one or more processes.