As nouns the difference between sacerdotalism and sacerdotalist

is that sacerdotalism is the belief that priests can act as mediators between god and mankind while sacerdotalist is one who practices sacerdotalism.

As an adjective sacerdotal

is of or relating to priests or a high religious order; priestly.

As a verb sacerdotalize is

to make sacerdotal.

As a noun sacerdotalism

is the belief that priests can act as mediators between God and mankind.

As a verb sacerdotalize is

to make sacerdotal.

Regret is a synonym of regretfulness.

As nouns the difference between regret and regretfulness

is that regret is emotional pain on account of something done or experienced in the past, with a wish that it had been different; a looking back with dissatisfaction or with longing while regretfulness is the state or condition of being regretful.

As a verb regret

is to feel sorry about (a thing that has or has not happened), afterthink: to wish that a thing had not happened, that something else had happened instead.

Ruefulness is a synonym of regretfulness.

As nouns the difference between ruefulness and regretfulness

is that ruefulness is the property of being rueful while regretfulness is the state or condition of being regretful.

As an adjective medial

is central; middle (relating to the middle).

As a noun microgenesis is

(biology|anatomy|medicine) the condition of a body part which has developed abnormally small.

As an adjective subcortical

is (medicine) of or pertaining to the subcortex, the portion of the brain located below the cerebral cortex.

As a noun microgenesis is

(biology|anatomy|medicine) the condition of a body part which has developed abnormally small.

As an adjective isolable

is able to be isolated.

As a noun microgenesis is

(biology|anatomy|medicine) the condition of a body part which has developed abnormally small.

As nouns the difference between percept and microgenesis

is that percept is while microgenesis is (biology|anatomy|medicine) the condition of a body part which has developed abnormally small.

As nouns the difference between ontogenesis and microgenesis

is that ontogenesis is the arising or development of an individual organism while microgenesis is the condition of a body part which has developed abnormally small.