bidirectional /bī-dī-rekˈshə-nəl/

1. Operating or passing signals in two directions
2. Printing the lines of a text alternately left to right and right to left (computing, etc)

• petaflop
• petaflops
• petal
• petaliferous
• petaline
• petalism
• petalisms
• petalled
• petalodies
• petalody
• petaloid
• petalomania
• petalomanias
• petalous
• petals
• petar
• petara
• petaras
• petard
• petards
• petaries
• petary
• petasus
• petasuses
• petaurine