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Definition of seamoth
seamoth
/ˈsiːˌmɔːθ/
sea · moth
Plural:seamoths
seamoth Lexical Profile
CEFR
C2
Grade
10
Tier
3
Usage
Rare
• noun
1
A small, heavily armored marine fish of the family Pegasidae, typically found in the tropical coastal waters of the Indo-Pacific oceans, characterized by a flattened body, a prolonged snout, and large wing-like pectoral fins.
Example
"While scuba diving in the coastal waters of Indonesia, she spotted a well-camouflaged seamoth crawling along the sandy ocean floor."
Synonyms
View all synonyms for seamothWord Origin & Etymology
A compound of 'sea' and 'moth', so named because its large, wing-like pectoral fins and flattened appearance visually resemble a moth.
Usage Trend
Historical frequency of usage in published text.
180019102020
Data source: Google Books Ngram Viewer
Cite this Entry
Wordmom. (2026). Definition of Seamoth. In Wordmom Dictionary. Retrieved Oct 14, 2026, from https://wordmom.com/dictionary/seamoth