Relating to or resembling a spade or blade.
The word spathal is used to describe things that look like a spade or blade.
Examples:
The spathal leaves were sharp and pointy.
The knife had a spathal shape.
She used a spathal tool to dig in the garden.
The spathal rock looked like a big knife.
The spaceship had a spathal design, like a big spade.
The spathal building had a roof that looked like a blade.