What does the prefix 'hemi-' mean in medical language?

The prefix 'hemi-' originates from the Greek word 'hēmisus,' meaning 'half.' In medical terminology, it is used to describe conditions or anatomical structures that are related to half of a whole. For example, 'hemiplegia' refers to paralysis of one half of the body, indicating that the impairment affects only a portion rather than the entirety. This prefix is often used to convey a sense of partiality in various medical terms, making it significant in accurately describing medical conditions or functions. Understanding this prefix helps in deciphering many complex medical terms that involve division or partial areas of the body.