Psychology. A discourse or treatise on the human soul; the science of the human soul; specifically, the systematic or scientific knowledge of the powers and functions of the human soul, so far as they are known by consciousness.
Quadrumane. An animal having four feet that correspond to the hands of a man, as a monkey.
Race. 1. The descendants of a common ancestor; a family, tribe, people, or nation, believed or presumed to belong to the same stock; a lineage; a breed.
2. A root.
Retina. The delicate inner coat of the eye, formed by nervous filaments spreading from the optic nerve, and serving for the perception of the impressions produced by light.
Rotifer (n. Lat. rotifer, from Lat. rota, a wheel, and ferro, to bear. Fr. rotifère). (Zoöl.) One of a group of microscopic crustaceans, having no limbs, and moving by means of rows of cilia about the head or the anterior extremity.
Rudiment (Nat. Hist.). An imperfect organ, or one which is never fully formed.
Sacral. Belonging to the sacrum, or the bone composed usually of two or more united vertebræ to which the sides of the pelvis in vertebrate animals are attached.
Sacrum. The bone which forms the posterior part of the pelvis. It is triangular in form.
Secularize. To convert from spiritual to secular or common use; as to secularize a church, or church property.