toxin

As nouns the difference between toxin and null

is that toxin is toxin while null is zero, nil; the cardinal number before einn.

As a letter s

is the letter s with a.

As a noun toxin is

toxin.

As nouns the difference between toxin and tonic

is that toxin is toxin while tonic is a substance with medicinal properties intended to restore or invigorate or tonic can be (music) the first note of a scale.

As an adjective tonic is

(physics|pathology) pertaining to tension, especially of muscles or tonic can be (music) pertaining to the keynote of a composition.

As a noun toxin

is toxin.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between toxin and microbes

is that toxin is toxin while microbes is .

As nouns the difference between toxin and acid

is that toxin is toxin while acid is acid (a food with a sharp taste).

As an adjective acid is

acid; sour; tart (having a sharp taste such as that of vinegar or a lemon).

As nouns the difference between pathogen and toxin

is that pathogen is any organism or substance, especially a microorganism, capable of causing disease, such as bacteria, viruses, protozoa or fungi. Microorganisms are not considered to be pathogenic until they have reached a population size that is large enough to cause disease while toxin is a toxic or poisonous substance produced by the biological processes of biological organisms.

As nouns the difference between toxin and pollutant

is that toxin is toxin while pollutant is a foreign substance that makes something dirty, or impure, especially waste from human activities.

As nouns the difference between virus and toxin

is that virus is venom, as produced by a poisonous animal etc while toxin is a toxic or poisonous substance produced by the biological processes of biological organisms.

As nouns the difference between germ and toxin

is that germ is the small mass of cells from which a new organism develops; a seed, bud or spore while toxin is a toxic or poisonous substance produced by the biological processes of biological organisms.

As a verb germ

is to germinate.