Melaleuca /ËmÉlÉËljuËkÉ/ is a genus of nearly 300 species of plants in the myrtle family, Myrtaceae, commonly known as paperbarks, honey-myrtles or tea-trees (although the last name is also applied to species of Leptospermum). They range in size from small shrubs that rarely grow to more than 1 m (3 ft) high, to trees up to 35 m (100 ft).
magnet noun [ C ] (OBJECT) âº an object that is able both to attract iron and steel objects and also push them away.
A permanent magnet is an object made from a material that is magnetized and creates its own persistent magnetic field.An everyday example is a refrigerator magnet used to hold notes on a refrigerator door.o demagnetize a saturated magnet, a certain magnetic field must be applied, and this threshold depends on coercivity of the respective material. Hard materials have high coercivity, whereas soft materials have low coercivity.