pleasantrynoun [ C usually plural ] uk â /Ëplez.Én.tri/ us â /Ëplez.Én.tri/ formal. âº a polite and often slightly humorous remark, usually made to help other people feel relaxed: After exchanging pleasantries, the delegation revealed the purpose of their visit. Thesaurus: synonyms and related words. Informal talking & conversation. a problem shared is a problem halved idiom. blarney.
Parkinsonism is a general term that refers to a group of neurological disorders that. cause movement problems similar to those seen in Parkinsonâs disease, such as. tremors, slow movement and stiffness.
Parkinson's disease (PD, also known as idiopathic or primary parkinsonism, hypokinetic rigid syndrome (HRS), or paralysis agitans) is a degenerative disorder of the central nervous system mainly affecting the motor system.he motor symptoms of Parkinson's disease result from the death of dopamine-generating cells in the substantia nigra, a region of the midbrain. The causes of this cell death are poorly understood.