bidirectional

adjective

bi·​di·​rec·​tion·​al ˌbī-də-ˈrek-sh(ə-)nəl 

-dī-

: involving, moving, or taking place in two usually opposite directions

bidirectional flow

bidirectional replication of DNA

bidirectionally adverb

Examples of bidirectional in a Sentence

Recent Examples on the Web

Additional features include hot-swappable batteries, bidirectional lighting, OTA updates, and modular expansion options. — Jijo Malayil, Interesting Engineering, 24 June 2026

Finally, there is a TRRS Aux input for bidirectional audio, which can also be used for bringing in a backing track or even phone callers for a podcast. — Mark Sparrow, Forbes.com, 21 June 2026

At the same time, the process of building the characters was always bidirectional. — Roberto Prieto, Variety, 19 May 2026

That connection is bidirectional, intentional, and therapeutic. — Steve D. Klein, STAT, 14 May 2026

Word History

First Known Use

1889, in the meaning defined above

Rhymes for bidirectional

• intersectional
• affectional
• correctional
• directional
• inflectional
• multidirectional
• omnidirectional
• unidirectional
• sectional

Kids Definition

bidirectional

adjective

bi·​di·​rec·​tion·​al ˌbī-də-ˈrek-sh(ə-)nəl 

-dī-

: involving, moving, or taking place in usually two opposite directions

Medical Definition

bidirectional

adjective

bi·​di·​rec·​tion·​al ˌbī-də-ˈrek-shnəl, -dī-, -shən-ᵊl 

: involving, moving, or taking place in two usually opposite directions

bidirectional flow of materials in axons

bidirectional replication of DNA

bidirectionally

-ē 

adverb