We found 2 dictionaries that define the word amphibious operations:

General (2 matching dictionaries)

1. amphibious operations: Vocabulary.com
2. Amphibious operations: Wikipedia, the Free Encyclopedia

(Note: See amphibious_operation as well.)

Definitions from WordNet (amphibious operation) ▸ noun:  a military operation by both land and sea forces ▸ Also see amphibious_operation ▸ Words similar to amphibious operations ▸ Usage examples for amphibious operations ▸ Idioms related to amphibious operations ▸ Wikipedia articles (New!) ▸ Words that often appear near amphibious operations ▸ Rhymes of amphibious operations ▸ Invented words related to amphibious operations