serum

As a noun serum

is serum.

As a letter x is

the twenty-fourth letter of the.

As a symbol x is

voiceless velar fricative.

As nouns the difference between toxoid and serum

is that toxoid is a toxin that has had its toxic properties removed, but retains its ability to generate an immune response while serum is serum.

As nouns the difference between puss and serum

is that puss is (informal) a cat or puss can be (slang) the mouth while serum is serum.

As nouns the difference between serum and plasms

is that serum is serum while plasms is .

As a noun serum

is serum.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between formula and serum

is that formula is any mathematical rule expressed symbolically while serum is the clear yellowish fluid obtained upon separating whole blood into its solid and liquid components after it has been allowed to clot. Also called blood serum.

As nouns the difference between antibody and serum

is that antibody is a protein produced by B-lymphocytes that binds to a specific antigen while serum is the clear yellowish fluid obtained upon separating whole blood into its solid and liquid components after it has been allowed to clot. Also called blood serum.

As nouns the difference between serum and iv

is that serum is the clear yellowish fluid obtained upon separating whole blood into its solid and liquid components after it has been allowed to clot. Also called blood serum while IV is an intravenous injection.

As an abbreviation IV is

used to indicate an ordinal number; the fourth (common as a name suffix..

As an initialism IV is

intravenous.

As nouns the difference between serif and serum

is that serif is a short line added to the tops and bottoms of traditional typefaces, such as Times New Roman while serum is the clear yellowish fluid obtained upon separating whole blood into its solid and liquid components after it has been allowed to clot. Also called blood serum.