What does "semisubmarine" mean?

A surface vessel that remains on the surface but has an enclosed passenger or accommodation space located below the waterline, fitted with windows for viewing the underwater environment.

What is a synonym for "semisubmarine"?

Common synonyms include: semisub.

Semisubmarine

noun

noun ·Rare ·Advanced level

Definitions

Noun

1
A surface vessel that remains on the surface but has an enclosed passenger or accommodation space located below the waterline, fitted with windows for viewing the underwater environment.

Synonyms

All synonyms

semisub

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.