from the GNU version of the Collaborative International Dictionary of English
- n. A small vibration.
from The Century Dictionary and Cyclopedia
- n. A small vibration. Also vibratiuncule. See the quotation under vestigium.
First used by the English philosopher David Hartley in his 1749 work Observations on Man; from New Latin vibratiuncula, diminutive form of Latin vibrātio ("vibration"). (Wiktionary)