Contraption vs Contagious - What's the difference?

As a noun contraption

is a machine that is complicated and precarious.

of a disease, easily transmitted to others.

(en noun)

A machine that is complicated and precarious.

(figuratively, derogatory, or, ironic) Any object.

* (mechanical device) contrivance, device, fandango, gadget, mechanism

(wikipedia contagious)

(en adjective)

Of a disease, easily transmitted to others.

The flu was so contagious that everybody in town got sick!

Of a fashion, laughter, etc., easily passed on to others.

Wearing jeans was a contagious fad at that time.

Of a person, having a disease that can be transmitted to another person by touch.

They were highly contagious , spreading bacteria to other people.

* (of a disease) catching, infectious * infectious

* non-contagious

* contagiousness * contagion