bead vs quirk bead

bead and quirk bead both are nouns.

Word	Noun	Adjective	Verb	Adverb
bead	Yes	No	Yes	No
quirk bead	Yes	No	No	No

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

bead: a beaded molding for edging or decorating furniture
quirk bead: beading formed with a narrow groove separating it from the surface it decorates

Other hyponyms of bead include bead and quirk.

bead (noun)	quirk bead (noun)
a small ball with a hole through the middle	beading formed with a narrow groove separating it from the surface it decorates
a beaded molding for edging or decorating furniture
a shape that is spherical and small

bead (verb)	quirk bead (verb)
string together like beads
decorate by sewing beads onto
form into beads, as of water or sweat, for example