trike vs pedicab

trike and pedicab both are nouns.

Word	Noun	Adjective	Verb	Adverb
trike	Yes	No	No	No
pedicab	Yes	No	No	No

As nouns, pedicab is a hyponym of trike; that is, pedicab is a word with a more specific, narrower meaning than trike:

trike: a vehicle with three wheels that is moved by foot pedals
pedicab: a tricycle (usually propelled by pedalling); used in the Orient for transporting passengers for hire

Other hyponyms of trike include cycle rickshaw.

trike (noun)	pedicab (noun)
a vehicle with three wheels that is moved by foot pedals	a tricycle (usually propelled by pedalling); used in the Orient for transporting passengers for hire