serious disease in which there is inflammation of the meninges(the three membranes (the dura mater, arachnoid, and pia mater) that line the skull and vertebral canal and enclose the brain and spinal cord), caused by viral or bacterial infection, and marked by intense headache and fever, sensitivity to light, and muscular rigidity.

the haploid set of chromosomes in a gamete or microorganism, or in each cell of a multicellular organism.It is the entire set of DNA instructions found in a cell