1. bark rich in tannin that is used for tanning leather
2. shredded bark used as a ground covering or mulch

Examples

• The leather workers collected tanbark from oak trees for the tanning process.
• Hemlock tanbark was highly valued in the 19th century leather industry.
• We spread tanbark around the garden beds to retain moisture.
• The playground was covered with soft tanbark to cushion falls.
• Fresh tanbark gives off a pleasant woody aroma in the garden.
• The old tannery required tons of tanbark each year to process hides.