We found 2 dictionaries that define the word spark-plug:

General (1 matching dictionary)

1. spark-plug: Wordnik

Computing (1 matching dictionary)

2. Spark-plug: Encyclopedia

▸ Words similar to spark-plug ▸ Usage examples for spark-plug ▸ Idioms related to spark-plug ▸ Wikipedia articles (New!) ▸ Words that often appear near spark-plug ▸ Rhymes of spark-plug ▸ Invented words related to spark-plug