seconddegree

Second degree is a term used in several fields to indicate either degree two or a rank that is second in a hierarchy. Its meaning is context dependent and can refer to mathematics, medicine, law, or social relations.

In mathematics, second degree denotes a relationship or object of degree two. A second-degree polynomial, or quadratic, has the general form ax^2 + bx + c. Its graph is a parabola in one variable; in two variables, a quadratic form defines conic sections such as ellipses, hyperbolas, and parabolas.

In medical usage, second degree commonly describes partial-thickness injuries. For burns, a second-degree burn damages the epidermis and part of the dermis, causing pain, redness, blistering, and swelling. Treatment emphasizes wound care, infection prevention, and pain management, with healing typically several weeks and potential scarring.

In legal contexts, "second degree" designates a level of severity or intent between more and less serious categories. Examples include second-degree murder or second-degree assault, which are defined by statute and vary by jurisdiction; penalties depend on the specific law, circumstances, and prior records.

In genealogy or sociology, second-degree relatives are two steps removed from oneself, including grandparents, grandchildren, aunts, uncles, and nieces or nephews.

Because usage varies by field, the intended meaning of "second degree" should be inferred from context.