As a noun fourpence

is a former british silver coin, worth four pence.

As an adjective fourpenny is

(dated) costing fourpence.

As a noun earwig

is any of various insects of the order dermaptera that have elongated bodies, large membranous wings folded underneath short leathery forewings and a pair of large pincers protruding from the rear of the abdomen.

As a verb earwig

is to fill the mind of with prejudice by insinuations.

As an adjective earwiggy is

infested with earwigs.

Picornaviridae is likely misspelled.

Picornaviridae has no English definition.

As a noun echovirus is

a type of RNA virus of the species species: Enterovirus B of the Picornaviridae family, found in the human gastrointestinal tract.

As nouns the difference between family and echovirus

is that family is a group of people who are closely related to one another (by blood or marriage); for example, a set of parents and their children; an immediate family while echovirus is a type of RNA virus of the species species: Enterovirus B of the Picornaviridae family, found in the human gastrointestinal tract.

As an adjective family

is suitable for children and adults.

Echovirus is a derived term of echoviral.

As an adjective echoviral

is relating to an echovirus.

As a noun echovirus is

a type of RNA virus of the species species: Enterovirus B of the Picornaviridae family, found in the human gastrointestinal tract.

As an adjective involuntary

is without intention; unintentional.

As a noun echopraxia is

the involuntary repetition or imitation of the observed movements of another.

Antimajoritarianism is a derived term of antimajoritarian.

As nouns the difference between antimajoritarianism and antimajoritarian

is that antimajoritarianism is opposition to majority rule while antimajoritarian is one who opposes majority rule.

As an adjective antimajoritarian is

opposing majority rule.

Majoritarian is a related term of antimajoritarian.

As adjectives the difference between majoritarian and antimajoritarian

is that majoritarian is supporting the dominance of the majority over the minority while antimajoritarian is opposing majority rule.

As a noun antimajoritarian is

one who opposes majority rule.

As a noun discrimination

is a distinction; discernment, the act of discriminating, discerning, distinguishing, noting or perceiving differences between things.

As an adjective antidiscrimination is

(legal) opposing or disallowing discrimination.

Antidiscriminatory is a synonym of antidiscrimination.

As adjectives the difference between antidiscriminatory and antidiscrimination

is that antidiscriminatory is opposing or disallowing discrimination while antidiscrimination is (legal) opposing or disallowing discrimination.