We found one dictionary that defines the word supporting towers:

General (1 matching dictionary)

1. supporting towers: Vocabulary.com

(Note: See supporting_tower as well.)

Definitions from WordNet (supporting tower) ▸ noun:  a tower that serves to support something ▸ Also see supporting_tower ▸ Words similar to supporting towers ▸ Usage examples for supporting towers ▸ Idioms related to supporting towers ▸ Wikipedia articles (New!) ▸ Words that often appear near supporting towers ▸ Rhymes of supporting towers ▸ Invented words related to supporting towers