Synonyms: simplex
Definition: allowing communication in only one direction at a time, or in telegraphy allowing only one message over a line at a time
Usage: simplex system
Similar words: unidirectional
Definition: operating or moving or allowing movement in one direction only
Usage: a unidirectional flow; a unidirectional antenna; a unidirectional approach to a problem
Synonyms: simplex
Definition: having only one part or element
Usage: a simplex word has no affixes and is not part of a compound--like `boy' compared with `boyish' or `house' compared with `houseboat'
Similar words: simple
Definition: having few parts; not complex or complicated or involved
Usage: a simple problem; simple mechanisms; a simple design; a simple substance