(a.) Proceding from natural feeling, temperament, or
disposition, or from a native internal proneness, readiness, or
tendency, without constraint; as, a spontaneous gift or proportion.
(a.) Proceeding from, or acting by, internal impulse,
energy, or natural law, without external force; as, spontaneous motion;
spontaneous growth.
(a.) Produced without being planted, or without human
labor; as, a spontaneous growth of wood.
