As a verb unit

is .

As a noun microcurie is

a unit or radioactivity equal to one millionth of a curie: symbol.

As nouns the difference between radioactivity and microcurie

is that radioactivity is spontaneous emission of ionizing radiation as a consequence of a nuclear reaction, or directly from the breakdown of an unstable nucleus while microcurie is a unit or radioactivity equal to one millionth of a curie: symbol.

As an adjective microscopic

is microscopic.

As a noun microeukaryote is

(biology) any microscopic eukaryote.

As nouns the difference between eukaryote and microeukaryote

is that eukaryote is any of the single-celled or multicellular organisms, of the taxonomic domain eukaryota , whose cells contain at least one distinct nucleus while microeukaryote is (biology) any microscopic eukaryote.

As nouns the difference between mammal and mesonychian

is that mammal is an animal of the class mammalia, characterized by being warm-blooded, having hair and feeding milk to its young while mesonychian is any of several extinct carnivorous mammals of the order mesonychia .

As a noun mesonychian is

any of several extinct carnivorous mammals of the order mesonychia .

In biology|lang=en terms the difference between cell and microcell

is that cell is (biology) the basic unit of a living organism, consisting of a quantity of protoplasm surrounded by a cell membrane, which is able to synthesize proteins and replicate itself while microcell is (biology) a simple cell consisting of a nucleus and protoplasm within a membrane.

As nouns the difference between cell and microcell

is that cell is a single-room dwelling for a hermit or cell can be (us|informal) a cellular phone while microcell is (biology) a simple cell consisting of a nucleus and protoplasm within a membrane.

As a verb cell

is to place or enclose in a cell.

As nouns the difference between nucleus and microcell

is that nucleus is the core, central part (of something), round which others are assembled while microcell is (biology) a simple cell consisting of a nucleus and protoplasm within a membrane.

As nouns the difference between protoplasm and microcell

is that protoplasm is (cytology) the entire contents of a cell comprising the nucleus and the cytoplasm it is a semi-fluid, transparent substance which is the living matter of plant and animal cells while microcell is (biology) a simple cell consisting of a nucleus and protoplasm within a membrane.

As nouns the difference between membrane and microcell

is that membrane is membrane while microcell is (biology) a simple cell consisting of a nucleus and protoplasm within a membrane.