Typical Mortars. Projected Grenades The most commonly used projected grenade is the 40 millime-ter (40mm) grenade. This grenade is also among the mostcommonly found UXO items. The 40mm grenade is about thesame size and shape as a chicken egg, as shown in Figure 7.
A female cat is called a queen. Male cats, on the other hand, are called toms. Cats are generally associated with the female of the species. When you call a woman ``catty'', for example, what you are implying is that she is very unpleasant and usually has a lot of nasty things to say about others.
Non-spayed female cats will go into heat or estrus seasonally in the spring and fall and may go into heat several times during the season. An intact (not spayed) female cat of reproductive age is called a queen. Learn more facts about feline estrus in this FAQ.