We found one dictionary that defines the word anchorage grounds:

General (1 matching dictionary)

1. anchorage grounds: Vocabulary.com

(Note: See anchorage_ground as well.)

Definitions from WordNet (anchorage ground) ▸ noun:  place for vessels to anchor ▸ Also see anchorage_ground ▸ Words similar to anchorage grounds ▸ Usage examples for anchorage grounds ▸ Idioms related to anchorage grounds ▸ Wikipedia articles (New!) ▸ Words that often appear near anchorage grounds ▸ Rhymes of anchorage grounds ▸ Invented words related to anchorage grounds