Items that Dr. Seuss's Once-ler knitted from the silk tufts of Truffula Trees

• Extremely versatile material the Once-ler manufactures in "The Lorax"
• What the Once-ler's factory produces in Dr. Seuss's "The Lorax"
• Garments in "The Lorax"
• Odd-looking but versatile garments the Once-ler manufactures in Dr. Seuss's "The Lorax"

Wiktionary Word definitions in Wiktionary
n. (plural of thneed English)