decagram (noun)

1. The painter used a decagram of gold leaf to add a dazzling touch to the artwork.

2. In the magical world she created, the witches used decagrams as their unit of measurement for casting spells.

3. The protagonist discovered a hidden treasure chest containing a decagram-shaped pendant.

4. The luxurious mansion featured stunning chandeliers adorned with decagrams for an elegant interior design touch.