The most common and most likely answer to this crossword clue is the 7 letter word SIEMENS
S
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More clues leading to the result SIEMENS
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The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
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What does SIEMENS mean?
SIEMENS noun- In the International System of Units, the derived unit of electrical conductance; the electric conductance in a body that has a resistance of one ohm. Symbol: S