port•man•teau /pɔrtˈmæntoʊ/, /ˌpɔrtmænˈtoʊ/ noun (pl. -x or -s)

1 A large travelling case made up of two halves joined by a hinge.

2 [also portmanteau word] A word that blends the sounds of two or more other words in order to indicate a combination of their meanings.

Usage Examples

The Pianocade, a chiptunes synthesizer/MIDI controller, combines the layout of a piano with arcade parts and sounds.

Bwiip (beep + Wii) is a musical toy that repurposes Wii controllers as lo-fi synthesizers.

Port•man•teau De•vi•ces /ˌpɔrtmænˈtoʊ dəˈvaɪsəs/ proper noun

A company that designs and manufactures innovative and fun open-source electronics. Founded by Jonathan Guberman in Toronto, Canada.