2) patrol torpedo boat. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...A PT boat....

3) torpedo-boat destroyer. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...A large, heavily armed torpedo boat used in combat especially against other torpedo boats until the early part of the 20th century....

4) torpedo boat. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...A small, fast warship equipped for firing torpedoes....

5) patent log. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...Nautical A torpedo-shaped instrument with rotary fins that is dragged from the stern of a vessel to measure the speed or distance traveled. Also called screw log,...

6) torpedo tube. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...submarine or another naval vessel or mounted on the deck of a surface warship, through which torpedoes are launched....

7) torpedo. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...Inflected forms: torˇpeˇdoed, torˇpeˇdoˇing, torˇpeˇdoes1. To attack, strike, or sink with a torpedo. 2. To destroy decisively; wreck: torpedo efforts at reform....

8) PT. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...1. Pacific Time 2. part-time 3. patrol torpedo 4. physical therapy 5. physical training...

9) Fulton, Robert. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...American engineer and inventor who developed the first useful submarine and torpedo (1800) and produced the first practical steamboat, the Clermont (1807)....

10) warhead. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...of the armament system in the forward part of a projectile, such as a guided missile, rocket, torpedo, bomb, or other munition, that contains either a nuclear or...