The property of being merciless.
The ability or practice of tolerating; an acceptance of or patience with the beliefs, opinions or practices of others; a lack of bigotry.
The ability of the body to accept a tissue graft without rejection.
The variation or deviation from a standard, especially the maximum permitted variation in an engineering measurement.
The ability of the body (or other organism) to resist the action of a poison, to cope with a dangerous drug or to survive infection by an organism.