H-bomb and Weapon of mass destruction

H-bomb noun - A nuclear weapon that releases atomic energy by union of light (hydrogen) nuclei at high temperatures to form helium.

Weapon of mass destruction and H-bomb are semantically related in atomic weapon topic. In some cases you can use "Weapon of mass destruction" instead a noun phrase "H-bomb".

Weapon of mass destruction noun - A weapon that kills or injures civilian as well as military personnel (nuclear and chemical and biological weapons).

H-bomb and weapon of mass destruction are semantically related in atomic weapon topic. You can use "H-bomb" instead a noun phrase "Weapon of mass destruction".