Wiktionary
portmanteau word
n. (context linguistics English) A word which combines the meaning of two words (or, rarely, more than two words), formed by combining the words, usually, but not always, by adjoining the first part of one word and the last part of the other, the adjoining parts often having a common vowel; for example, ''smog'', formed from ''smoke'' and ''fog''.
WordNet
portmanteau word
n. a new word formed by joining two others and combining their meanings; "`smog' is a blend of `smoke' and `fog'"; "`motel' is a portmanteau word made by combining `motor' and `hotel'"; "`brunch' is a well-known portmanteau" [syn: blend, portmanteau]
Usage examples of "portmanteau word".
Well, this is like that word - Tramstillstand- a portmanteau word.