Word: thruster
Part of speech: Noun
Syllables: thrust
er
Definition: A surfboard (usually a shortboard) with three fins of approximately equal size, one centred at the back, one on each side about 25cm forward and out near the rails.
Morphemes:
Affix: thrust
Language: en
PoS: Noun
Meaning: A push, stab, or lunge forward (the act thereof.)
Affix: -er
Language: en
PoS: Suffix
Meaning: Used to form nouns shorter than more formal synonyms.