vi to move with rapidity or activity; to become accelerated; as, his pulse quickened.
2. quicken ·adj to shorten the radius of (a curve); to make (a curve) sharper; as, to quicken the sheer, that is, to make its curve more pronounced.
3. quicken ·vi to come to life; to become alive; to become vivified or enlivened; hence, to exhibit signs of life; to move, as the fetus in the womb.
4. quicken ·adj to make alive; to vivify; to revive or resuscitate, as from death or an inanimate state; hence, to excite; to, stimulate; to incite.
5. quicken ·adj to make lively, active, or sprightly; to impart additional energy to; to stimulate; to make quick or rapid; to hasten; to accelerate; as, to quicken one's steps or thoughts; to quicken one's departure or speed.