As nouns the difference between actuality and ingression

is that actuality is the state of existing; existence while ingression is the act or process of entering or intruding.

As nouns the difference between blastula and ingression

is that blastula is (embryology) an early form in the development of an embryo, consisting of a spherical layer of cells filled with fluid; a blastosphere while ingression is the act or process of entering or intruding.

As nouns the difference between gastrulation and ingression

is that gastrulation is (embryology|biology) the stage of embryo development at which a gastrula is formed from the blastula by the inward migration of cells while ingression is the act or process of entering or intruding.

Ingressive is a related term of ingression.

As nouns the difference between ingressive and ingression

is that ingressive is (phonetics) a speech sound in which the air stream is created by drawing air in through the mouth or nose while ingression is the act or process of entering or intruding.

As an adjective ingressive

is going or directed inward, entering.

Ingressor is a related term of ingression.

As a noun ingression is

the act or process of entering or intruding.

Ingression is a related term of aggression.

As nouns the difference between aggression and ingression

is that aggression is the act of initiating hostilities or invasion while ingression is the act or process of entering or intruding.

Egression is a related term of ingression.

As nouns the difference between egression and ingression

is that egression is the act of going; egress while ingression is the act or process of entering or intruding.

Progression is a related term of ingression.

As nouns the difference between progression and ingression

is that progression is the act of moving from one thing to another while ingression is the act or process of entering or intruding.

Ingression is a related term of transgression.

As nouns the difference between transgression and ingression

is that transgression is a violation of a law, command or duty while ingression is the act or process of entering or intruding.

As an adjective philosophical

is of, or pertaining to, philosophy.

As a proper noun ockhamist is

a school of philosophical thought founded by in the fourteenth century.

As a noun ockhamist is

a follower of the ockhamist school of thought.