Neutron bomb and Thermonuclear bomb

Neutron bomb noun - Atom bomb that produces lethal neutrons with less blast.

Thermonuclear bomb and neutron bomb are semantically related in nuclear bomb topic. In some cases you can use "Thermonuclear bomb" instead a noun phrase "Neutron bomb", when it comes to topics like atomic bomb.

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

Neutron bomb and thermonuclear bomb are semantically related in nuclear bomb topic. You can use "Neutron bomb" instead a noun phrase "Thermonuclear bomb", if it concerns topics such as atomic bomb.