TRISTANIA laurina. Tristania laurina (aka Tristaniopsis laurina) - Water Gum. 1  Slow growing evergreen tree to 20-30 feet tall and 15-20 feet wide. 2  Blooms fragrant yellow flowers in early summer. 3  Likes full sun and moderate water. 4  Excellent tree for use in a lawn.
Definition of 'Risk'. Tweet. Risk implies future uncertainty about deviation from expected earnings or expected outcome.
risk factor. n. A characteristic, condition, or behavior, such as high blood pressure or smoking, that increases the possibility of disease or injury. risk factor. n. (Medicine) med a factor, such as a habit or an environmental condition, that predisposes an individual to develop a particular disease.