Yeah, Lusor's right. Those aren't the real meaning of either.
SCP 513 wrote:
Memetic - not harmful and anomalous
Cognitohazards - not harmful
Cognitohazard means that the object will press an effect of any degree upon you if 'sense' it in any way, most specific to a certain sense. In 513's case, hearing. In 096's, seeing.
Memetic just means that it builds an effect on you via information. Example; 055 is memetic as any information based on it will be forgotten and thusly cannot be spread. It's it's own self contained memetic hazard.
Anyone feel free to correct any of the above, or build upon it more. And continue on with your work here.
It slep time bunner.