The speculative most recent common ancestor of all the world's languages, according to a monogenetic theory.

breast milk

plural of human blockhead

A performer who drives a nail or other implement into his/her nasal cavity, producing the illusion that it is being driven into a solid part of the head.

Said in dismay, often sarcastically.

The social and cultural aspects of an operational environment, especially in a military context.

plural of human terrain

plural of half-human

Any hybrid of a human and some other creature.

Only partly human.