Unnumbered source etymology
Original entry ↗prefix
Selected source glosses provide context, not a complete modern definition inventoryIn the International System of Units and other metric systems of units, multiplying the unit to which it is attached by 10⁻¹⁸ (short scale quintillionth or long scale trillionth).
From Danish atten (“eighteen”), with reference to the (negative) exponent in the relevant power of ten; the same principle also explains femto-.
Relationships mentioned by the source
These are extracted mentions, not a timeline or a verified sequence of immediate parents.
- Derivation mentionattenda · eighteen
Inspect preserved source fields
Raw extraction fields are retained for auditing. Their order does not establish ancestry.
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"t": "eighteen"
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{
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"glosses": [
"In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by 10⁻¹⁸ (short scale quintillionth or long scale trillionth)."
],
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