atom

As a noun atom

is an (l).

As a preposition atop is

on the top of.

As an adverb atop is

on, to, or at the top.

As nouns the difference between atom and tom

is that atom is the smallest medieval unit of time, equal to fifteen ninety-fourths of a second while tom is the male of the domesticated cat.

As a verb tom is

to act in an obsequiously servile manner toward white authority.

As a proper noun Tom is

a diminutive=Thomas given name, also used as a formal male given name.

As nouns the difference between atom and atomy

is that atom is an (l) while atomy is a floating mote or speck of dust or atomy can be (archaic) a skeleton.

As nouns the difference between taxonomy and atom

is that taxonomy is the science or the technique used to make a classification while atom is an (l).

As nouns the difference between cell and atom

is that cell is a single-room dwelling for a hermit or cell can be (us|informal) a cellular phone while atom is an (l).

As a verb cell

is to place or enclose in a cell.

As a noun atom

is an (l).

As an adjective hexacid is

(chemistry) having six atoms or radicals capable of being replaced by acids; hexatomic; hexavalent.

As nouns the difference between atom and subatom

is that atom is the smallest medieval unit of time, equal to fifteen ninety-fourths of a second while subatom is any particle that is smaller than an atom.

As a noun atom

is an (l).

As an adjective trichromic is

(chemistry) containing three atoms of chromium.

As nouns the difference between atom and protosilicate

is that atom is an (l) while protosilicate is (chemistry) a silicate formed with the lowest proportion of silicic acid, or having only one atom of silicon in the molecule.

As nouns the difference between atom and vacuist

is that atom is the smallest medieval unit of time, equal to fifteen ninety-fourths of a second while vacuist is one who holds the doctrine that the space between the bodies of the universe, or the molecules and atoms of matter, is a vacuum.