"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.
The medical term for pertaining to two joints is "bilateral." This term indicates that the condition or structure being described relates to both sides of the body or a pair of joints.
Bilateral means pertaining to both sides of the body or a paired structure, such as bilateral knee pain indicating pain in both knees. It is used to describe symmetrical conditions or symptoms affecting both sides.
Pharyngolaryngectomy is the medical term meaning surgical removal of both the larynx and pharynx. The individual procedures are laryngectomy and pharyngectomy.
Syncope is the medical term meaning fainting.
Anacusis is the medical term meaning complete deafness.
Lamina is the medical term meaning layers.
Sensation is the medical term meaning feeling.
Eructation is the medical term meaning burping.eructation
Kyphotic is the medical term meaning humpbacked.
Atrophy is the medical term meaning shrinking.
Alimentation is the medical term meaning food.