introversion

1. A turning inward, particularly:Examples: "This disease is sometimes produced by the introversion of the edge of the lower eyelid."uncountableusually

2. A turning inward, particularly:Examples: "...their... Fastings, Prayings,... Introversions,... Humiliations, Mortifications..."; "The attending to the voice of Christ within you is what [mystics] term Introversion."; "... Hamlet, who so perfectly typifies the introversion and complexity of modern thought as compared with ancient..."uncountableusually

3. A turning inward, particularly:Examples: "...so that when in later life there occurs an introversion (in the sense of Jung), it consists of a harking back to regressive, reminiscent, infantile material."; "I called the hysterical type the extraversion type and the psychasthénic type the introversion type."; "Patients with this disease are at times completely withdrawn from the world around them and give the picture of the very extreme of introversion."uncountableusually

4. A turning inward, particularly:Examples: "Such introversion is merely a matter of form."uncountableusually