Collocations for perpendicular - adj.
1. pointing straight up
VERBS
be
ADV.
almost, nearly
an almost perpendicular staircase
an almost perpendicular staircase
2. at an angle of 90° to sth
VERBS
be
ADV.
exactly | almost | mutually
two mutually perpendicular directions
two mutually perpendicular directions
PREP.
to
The axis of the moon will now be exactly perpendicular to that of the earth.
The axis of the moon will now be exactly perpendicular to that of the earth.