Clue: Siemens, once

Answer: MHOS

Length: 4

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Similar Clues:

• Reciprocals of siemens (OHMS with 4 letters)
• Units now called siemens (MHOS with 4 letters)
• Used an old Siemens T100 (TELEXED with 7 letters)
• Unit replaced by the siemens (MHO with 3 letters)
• Unit now known as a siemens (MHO with 3 letters)
• Unit now called a siemens (MHO with 3 letters)
• Siemens predecessor (MHO with 3 letters)
• Old name for the unit now called a siemens (MHO with 3 letters)

Nothing more is found...