This is the 5705th most frequent Portuguese word.
alzheimer
A neurodegenerative disease causing memory loss, cognitive decline, and behavioral changes.
In this sentence, 'alzheimer' is used as a proper noun referring to the medical condition.
O alzheimer é uma doença degenerativa que afeta a memória.
Alzheimer's is a degenerative disease that affects memory.
Here, 'alzheimer' is again a proper noun, used in the specific context of discussing research and treatment.
A pesquisa busca novos métodos para tratar o alzheimer.
The research seeks new methods to treat Alzheimer's.
In this context, 'alzheimer' is employed as part of the phrase 'mal de Alzheimer', which is another way of referring to Alzheimer's disease in Portuguese.