from Wiktionary, Creative Commons Attribution/Share-Alike License
- adv. In a parallel direction; in a parallel manner.
from the GNU version of the Collaborative International Dictionary of English
- adv. In a parallel manner; with parallelism.
from The Century Dictionary and Cyclopedia
- In a parallel manner; as a parallel or as parallels; in a corresponding manner; concordantly.
parallel + -ly (Wiktionary)