Definition of up-bow in English:

up-bow

noun

  • (on a stringed instrument) a stroke begun with the tip of the bow and proceeding toward the base.

    Compare with down-bow
    • ‘His bow technique is very sound, and his up-bows are especially elegant.’
    • ‘The down-bow and up-bow should be seen and felt as almost one, unending movement.’
    • ‘If you were to use all single bow strokes, you would start with an up-bow on the first quarter note.’
    • ‘Try starting the second part with two up-bows.’

Pronunciation:

up-bow

/ˈəpbō/