/lu:m ||; lum/noun [C] a machine that is used for making cloth (weaving) by passing pieces of thread across and under other pieces 织布机
loom²
/lu:m ||; lum/verb [I] loom (up) to appear as a shape that is not clear and in a way that seems frightening 隐约出现（而令人生畏）: The mountain loomed (up) in the distance.这座山在远处隐约显现。