Answer:

mote

Answer	Crossword Clue
MOTE	Dust particle
MOTE	Little bit
MOTE	Small particle

MOTE	Dust speck
MOTE	Atom
MOTE	Fleck
MOTE	Particle
MOTE	Insignificant speck
MOTE	Speck
MOTE	Tiny speck
MOTE	Speck of dust

MOTE	Small speck
MOTE	Tiny bit
MOTE	Tiny particle
MOTE	Dust unit
MOTE	Bit of dust
MOTE	Floating speck, perhaps
MOTE	Sunbeam speck
MOTE	No big thing

MOTE	Dust bunny particle
MOTE	Minute bit
MOTE	Dusty bit
MOTE	Crumb
MOTE	Iota
MOTE	Sunbeam floater
MOTE	Grain
MOTE	Small thing

MOTE	Dusty speck
MOTE	Eye annoyance
MOTE	Small spot
MOTE	Scintilla
MOTE	"This Cosmos in which we float like a ..": Sagan
MOTE	"The ... in God's Eye" (sci-fi novel)
MOTE	Minute particle.
MOTE	Fragment missed in ginning cotton.

MOTE	Speck.
MOTE	Particle of floating dust.
MOTE	Floating speck of dust.
MOTE	Small particle.
MOTE	Dust particle.