He later retracted the statement, stating that the device's exact mode of operation was something of a mystery at that point.

Iontophoresis was originally described in the 1950s, although the exact mode of action remains elusive.

The exact mode of this chastisement I leave, for now, to your imaginations.

He couldn't imagine the exact mode of the destruction, but somehow he was sure it would happen.

However the exact mode of action remains elusive.

While the exact mode of inheritance is unknown, it is probably polygenetic.

The exact mode of bloom toxicity is currently unknown, but gill damage leading to hypoxia is the proposed cause for fish death.

The exact modes of sounding can vary from location to location.

The exact mode of action remains unclear and needs further research.

Question every artifact here, if you have to, until we discover the exact mode of her demise.