Crabs and their close relatives have 10 legs, arranged in five pairs. Some of their legs are used for walking, while others are used for swimming or defense.
Definition of plunge for English Language Learners. : 1  a sudden fall or jump usually from a high place. : 2  a sudden quick fall in amount, value, etc. : 3  the act of suddenly beginning to be in a particular condition or situation.
Thrusting. of Thrust. Thrusting (noun) the act of pushing with force. Thrusting (noun) the act of squeezing curd with the hand, to expel the whey. Thrusting (noun) the white whey, or that which is last pressed out of the curd by the hand, and of which butter is sometimes made