transcription, транскрипция: [ pɜ:(r)pəndɪkjʊlə(r) ]
1.
A perpendicular line or surface points straight up, rather than being sloping or horizontal.
We made two slits for the eyes and a perpendicular line for the nose...
The sides of the loch are almost perpendicular.
= vertical
ADJ : usu ADJ n
2.
If one thing is perpendicular to another, it is at an angle of 90 degrees to it. ( FORMAL )
The left wing dipped until it was perpendicular to the ground.
ADJ : usu v-link ADJ to n