Word: sparkproof
Part of speech: Adjective
Syllables: spark
proof
Definition: Designed not to emit sparks.
Morphemes:
Affix: spark
Language: en
PoS: Verb
Meaning: To give off a spark or sparks.
Affix: -proof
Language: en
PoS: Suffix
Meaning: Used to form adjectives denoting an impervious or impenetrable quality.