lateral
adjective [ before noun ]
uk/ˈlætərəl/ usrelated to the side of an object or to sideways movement:
Designers added more storage space, with lateral expansion of the rear compartment.
HR
at the same level in an organization or between two different organizations:
lateral move/movement Susan's lateral move to do the same job at a competitor meant better benefits and more pay.
We've made a number of important lateral hires from quality firms.
laterally
adverb
He moved laterally to head the consumer and small business banking division of a national bank.