BDC style reticles can look very different from one scope to the next. The reticle on the left is from a Bushnell 1-4x24mm AR optic and the reticle on the right is a Bushnell proprietary âDOA 600â reticle from one of their 3-9x optics.
Freebase(0.00 / 0 votes)Rate this definition: Thirst is the craving for fluids, resulting in the basic instinct of animals to drink. It is an essential mechanism involved in fluid balance. It arises from a lack of fluids or an increase in the concentration of certain osmolites, such as salt.
Thirst is the desire to drink fluids, and it is a normal, everyday feeling. Depending on your activities and diet, you may notice changes in how thirsty you feel during a particular day and on different days.Major changes in your patterns of thirst, however, may be symptoms of a disease or medical condition.t is usually appropriate to drink fluids when you are thirsty and not to drink fluids when you are not thirsty. If you suspect that your thirst patterns are not normal, or if you notice a sudden change in your thirst, it is important to contact a physician to determine the cause of these symptoms.