lower mast
noun
Definition of lower mast
: the lowest part of a compound mast composed of two or more poles — compare topmast
Read the Latest from M-W
There's more!
Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
1656
First Known Use of lower mast
1656
Seen and Heard
What made you want to look up lower mast? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!