"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.
Ambi- is the medical terminology combining form meaning both
The medical term for the opposite side is contralateral.contralateralcontralateral
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.
Flexion is the medical term meaning bending
Atrophy is the medical term meaning shrinking.
Alimentation is the medical term meaning food.
Eructation is the medical term meaning burping.eructation
Asphyxia is the medical term meaning suffocation.Asphyxiationasphyxiation
Acornuate is the medical term meaning hornless.