Meanings
proper noun
- A deep in Mariana Trench, Pacific Ocean; the third deepest known place on Earth, second deepest in the Mariana Trench.
Synonyms: HMRG Deep
Synonyms & antonyms
proper nounA deep in Mariana Trench, Pacific Ocean; the third deepest known place on Earth, second deepest in the Mariana Trench.
Similar
Origin
From being chosen in a competition held among students in the Marianas to name the deep by the discovery team. From association with mythological sirens of the deep.
Full word history & related roots →Cite this entry
APA
Sirena Deep. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Sirena%20Deep
MLA
“Sirena Deep.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Sirena%20Deep. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “Sirena Deep,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Sirena%20Deep.
Source: Sirena Deep on Wiktionary, CC BY-SA 4.0.