muscle contraction(n = noun.act) contraction, muscular contraction - (physiology) a shortening or tensing of a part or organ (especially of a muscle or muscle fiber);
is a kind of shortening
has particulars: contracture, tetanus, uterine contraction, braxton-hicks contraction, false labor, vaginismus

abdominal external oblique muscle, abdominal muscle, abducens muscle, abductor muscle, adductor muscle, anconeous muscle, antagonistic muscle, anterior serratus muscle, articular muscle, axial muscle, braxton-hicks contraction, buccinator muscle, cardiac muscle, cheek muscle, contraction, cowl muscle, deltoid muscle, depressor muscle, extensor muscle, external oblique muscle, eye muscle, facial muscle, flexor muscle, gastrocnemius muscle, gluteal muscle, gluteus muscle, great adductor muscle, greater pectoral muscle, greater rhomboid muscle, heart muscle, inferior rectus muscle, intercostal muscle, involuntary muscle, lateral rectus muscle, lesser rhomboid muscle, medial rectus muscle, muscle, muscle bound, muscle builder, muscle building, muscle cell, muscle fiber, muscle fibre, muscle into, muscle man, muscle memory, muscle reading, muscle relaxant, muscle sense, muscle spasm, muscle system, muscle tone, muscular contraction, ocular muscle, papillary muscle, pectoral muscle, posterior serratus muscle, premature ventricular contraction, pterygoid muscle, rhomboid minor muscle, rhomboid muscle, rhomboideus major muscle, sartorius muscle, scalene muscle, skeletal muscle, smaller pectoral muscle, smooth muscle, smooth muscle cell, soleus muscle, sphincter muscle, splenius muscle, sternocleidomastoid muscle, striated muscle, striated muscle cell, striated muscle fiber, striated muscle tissue, superior rectus muscle, temporal muscle, temporalis muscle, teres major muscle, teres minor muscle, teres muscle, tibialis muscle, transverse muscle of abdomen, transversus abdominis muscle, trapezius muscle, uterine contraction, voluntary muscle