subparallel

adjective

sub·​par·​al·​lel ˌsəb-ˈper-ə-ˌlel 

-ˈpa-rə-,

-ləl

variants or sub-parallel

: nearly parallel : not quite parallel

… other faults in the area, most of which run parallel or subparallel to the San Andreas.

—Linda Rowan

Word History

First Known Use

1803, in the meaning defined above