[Blue Cadillac]

I found this, if it helps:

"Death was historically believed to be an event that coincided with the onset of clinical death. It is now understood that death is a series of physical events, not a single one, and determination of permanent death is dependent on other factors beyond simple cessation of breathing and heartbeat".

Since Jemima's daughter was described as having stopped breathing, one could argue that permanent death had not taken place, and that it was more the case that she'd stopped breathing, but other physical events had not occurred in order to determine death.