We found 2 dictionaries that define the word orb webs:

General (2 matching dictionaries)

1. orb webs: Merriam-Webster
2. orb webs: TheFreeDictionary.com

(Note: See orb_web as well.)

Definitions from WordNet (orb web) ▸ noun:  a round spider web ▸ Also see orb_web ▸ Words similar to orb webs ▸ Usage examples for orb webs ▸ Idioms related to orb webs ▸ Wikipedia articles (New!) ▸ Words that often appear near orb webs ▸ Rhymes of orb webs ▸ Invented words related to orb webs