motor torpedo boat: meaning, definition, pronunciation and examples
lowhistorical, military, technical
Quick answer
What does “motor torpedo boat” mean?
A small, fast naval vessel designed to launch torpedoes against larger ships.
Audio
Pronunciation
Definition
Meaning and Definition
A small, fast naval vessel designed to launch torpedoes against larger ships.
A term most associated with small, agile attack craft used primarily during World Wars I and II, often operating in coastal waters and relying on speed and surprise. Modern equivalents are typically called 'fast attack craft' or 'missile boats'.
Dialectal Variation
British vs American Usage
Differences
The term is used in both varieties. However, the US Navy's equivalent vessels in WWII were officially designated 'PT boats' (Patrol Torpedo boats), making 'PT boat' far more common in American historical discourse.
Connotations
In British English, 'motor torpedo boat' is the standard historical term. In American English, 'PT boat' carries strong cultural resonance due to famous incidents (e.g., John F. Kennedy's PT-109) and media.
Frequency
Very low in contemporary usage. 'PT boat' is significantly more frequent in American English texts. 'MTB' is recognized but less common in general AmE.
Grammar
How to Use “motor torpedo boat” in a Sentence
The [nationality] MTB [verb, e.g., engaged, sank, patrolled]...Vocabulary
Collocations
Usage
Meaning in Context
Business
Virtually never used.
Academic
Used in historical, military history, and naval engineering contexts.
Everyday
Extremely rare, except among military history enthusiasts.
Technical
Used in precise historical classification of warships. Replaced by more modern terminology in contemporary naval discussions.
Vocabulary
Synonyms of “motor torpedo boat”
Neutral
Weak
Vocabulary
Antonyms of “motor torpedo boat”
Watch out
Common Mistakes When Using “motor torpedo boat”
- Using 'motor torpedo boat' to refer to modern missile boats.
- Confusing it with a 'destroyer' or 'frigate' (much larger ships).
- Misspelling as 'motor torpedoe boat'.
FAQ
Frequently Asked Questions
They are conceptually the same type of vessel. 'Motor Torpedo Boat' (MTB) is the general term, while 'PT Boat' (Patrol Torpedo boat) was the specific designation used by the United States Navy during World War II.
Not in their original form. The role has evolved into modern 'fast attack craft' or 'missile boats', which are larger, carry missiles instead of or in addition to torpedoes, and have more advanced sensors and weapons systems.
Wooden construction saved weight, which was critical for achieving high speeds. It also made the boats less detectable by magnetic anomaly detection (MAD) equipment used to find submarines, and wooden hulls could absorb some damage without sinking immediately.
They were lightly armoured and very vulnerable to enemy gunfire. Their effectiveness depended almost entirely on surprise, speed, and operating at night or in poor weather to avoid detection and engagement by larger warships.
A small, fast naval vessel designed to launch torpedoes against larger ships.
Motor torpedo boat is usually historical, military, technical in register.
Motor torpedo boat: in British English it is pronounced /ˈməʊtə tɔːˈpiːdəʊ bəʊt/, and in American English it is pronounced /ˈmoʊt̬ɚ tɔːrˈpiːdoʊ boʊt/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think of a MOTOrboat that's specially made to fire TORPEDOes: a Motor Torpedo Boat.
Conceptual Metaphor
THE NAVY IS A FAMILY (Capital ships are the parents; MTBs are the swift, troublesome children).
Practice
Quiz
Which term is most specifically associated with American WWII motor torpedo boats?