peduncle vs pedicel

peduncle and pedicel both are nouns.

Word	Noun	Adjective	Verb	Adverb
peduncle	Yes	No	No	No
pedicel	Yes	No	No	No

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

peduncle: stalk bearing an inflorescence or solitary flower
pedicel: a small stalk bearing a single flower of an inflorescence; an ultimate division of a common peduncle

Other hyponyms of peduncle include pedicle.

peduncle (noun)	pedicel (noun)
a bundle of myelinated neurons joining different parts of the brain	a small stalk bearing a single flower of an inflorescence; an ultimate division of a common peduncle
stalk bearing an inflorescence or solitary flower
the thin process of tissue that attaches a polyp to the body