the smallest unit of a chemical element

smallest part of something

a small cart with two wheels, pulled or pushed by hand, e.g. one used to sell fruit

grave

small round mark (as over the letter i and j)

tiny mark, drop

a small spot or patch; a small particle (of dust etc)

spot, pinpoint mark

the small, hard seed of food plants such as wheat and rice

seed, piece

a kind of very small creature that can carry disease; small especially poor child; a very small or modest contribution or offering

small insect

the smallest unit (usually a group of atoms) into which a substance can be divided without a change in its chemical nature

smallest part

an egg of a louse etc (e.g. as found in the human hair)

small insect

a very small bit; any (usually short) word that is not a verb, subject or object but is a necessary part of a phrase, sentence or verb

atom, piece

a sharp end (of a pin, pencil etc); a marked place or position in space or time; a small dot (as if) made by the point of a pencil etc; a main piece of information, idea or thought in an argument

speck

into very small pieces

atom, piece

a very small sport or piece (of dirt etc); a small visible spot

tiny bit

a small round mark on a surface; a dirty mark; a small drop (of liquid); a particular place; to recognize or notice (a person, thing) suddenly; to mark something with spots

mark, stain