The medical term for the opposite side is contralateral.
contralateral
contralateral
"Bilateral (two + sides) lower extremities" would best describe something that is generally happening to both legs, such as "bilateral edema of the lower extremities". Generally the term would be more specific as to the area of the leg.
Diarthrotic means pertaining to two joints.
The medical term 'Bilateral' basically means both sides. Both the right and the left side of the body must be experiencing the same condition. For example, arthritis in both the left and the right wrist, this would then use the wording, 'bilateral arthritis'.
Pharyngolaryngectomy is the medical term meaning surgical removal of both the larynx and pharynx. The individual procedures are laryngectomy and pharyngectomy.
Anacusis is the medical term meaning complete deafness.
Syncope is the medical term meaning fainting.
Lamina is the medical term meaning layers.
Sensation is the medical term meaning feeling.
Eructation is the medical term meaning burping.eructation
Atrophy is the medical term meaning shrinking.
Metastasize is the medical term meaning "to spread."
Stasis is the medical term meaning stopping.