She has fish odor syndrome.

This perfume is odorless.

The flowers in the garden were odoriferous, filling the air with a sweet scent.

The odorisers in the room were overpowering.

The odoriser is used to add a pleasant scent to the room.

They odorise the room with scented candles.

The gas was odorised to make it detectable.

The technician is odorising the gas to make it detectable.

The flower odorises the room with its sweet fragrance.

The odorlessness of the flowers was a pleasant surprise.