- A steel plug, slightly dished or cup-shaped. When driven into place it flattens to fit tightly in its seat. In an engine block, expansion plugs (also called freeze plugs or core-hole plugs) are inserted into the holes in the casting through which core was removed when casting was formed. They open into cooling passages and thus provide pressure relief should the engine coolant freeze and expand. See core plugs.
Dictionary of automotive terms. 2015.
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plug — A removable cork or stopper which fills a hole. See blanking plug coil glow plug cold plug core hole plug core plugs drain plug drain plug key drain plug spanner drain plug wrench … Dictionary of automotive terms
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expansion card — ➔ card * * * expansion card UK US noun [C] IT ► a board covered with small metal electrical connections that create one or more circuits and that can be connected to the main circuit board of a computer so that it can do more things: »Installing… … Financial and business terms
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expansion slot — noun (computer) a socket in a microcomputer that will accept a plug in circuit board the PC had three slots for additional memory • Syn: ↑slot • Topics: ↑computer, ↑computing machine, ↑computing device, ↑ … Useful english dictionary
plug-in — noun a printed circuit that can be inserted into expansion slots in a computer to increase the computer s capabilities • Syn: ↑circuit board, ↑circuit card, ↑board, ↑card, ↑add in • Hypernyms: ↑printed circuit … Useful english dictionary
Freeze plug — is a misnomer for core plug or expansion plug, and is commonly referred to as a frost plug. They are a subset of the plugs on a car engine cylinder block or cylinder head. The traditional plug is a thin, domed, disc of metal which fits into a… … Wikipedia