In medicine, an unanticipated problem that arises following, and is a result of, a procedure, treatment, or illness. A complication is so named because it complicates the situation.

In medicine, a medical problem that occurs during a disease, or after a procedure or treatment. The complication may be caused by the disease, procedure, or treatment or may be unrelated to them.

early 15c., from Middle French complication, from Latin complicationem (nominative complicatio), noun of action from past participle stem of complicare "to fold together, fold up, roll up," [..]

something that introduces difficulty to an existing situation.

the act or process of complicating a situation or condition that is complex or confused; "her coming was a serious complication" any disease or disorder that occurs during th [..]

n. An intermingling or combination of things or parts, especially in a perplexing manner.

An intensification of the conflict

in plot, an action or event that introduces a new conflict or intensifies the existing one, especially during the rising action phase of plot.

a plot event that complicates or tightens the tension of a film  

complication (pop)

sequelae

(n) the act or process of complicating(n) a situation or condition that is complex or confused(n) any disease or disorder that occurs during the course of (or because of) another disease(n) a developm [..]

A medical problem that occurs during a disease or after a procedure or treatment. The complication may be caused by the disease, procedure, or treatment or may be unrelated to them.

A watch function other than basic time keeping. Some popular complications include chronographs, minute repeaters, tourbillions and perpetual calendars

An additional function of a watch that goes beyond telling the time, like a stopwatch (chronograph), calendar or a moonphase indicator. Complications require additional parts and make a watch more exp [..]

An additional mechanism or feature in a watch movement beyond the basic function of timekeeping. Common complications include day/date calendars, chronographs and moon phase mechanisms.

Any feature on a watch beyond the display of the time.

A watch with other functions besides timekeeping. For example, a chronograph is a watch complication. Other complications coveted by watch collectors include: minute repeater, tourbillon, perpetual ca [..]

A complication is any watch feature that indicates more than the basic time, such as dates, chronographs, moon dials, etc.

The second act of a three-act dramatic structure, in which "the plot thickens," peaking at its end.

an action point that is introduced early in the film with no obvious effect or importance until later, when it becomes the unexpected source of difficulties or solutions to the protagonist’s objective [..]

The co-occurrence of Pregnancy and a Cardiovascular Disease. The Disease may precede or follow Fertilization and it may or may not have a deleterious effect on the Pregnant Woman or Fetus.

The co-occurrence of Pregnancy and a Blood Disease (Hematologic Diseases) which involves Blood Cells or Coagulation Factors. The Hematologic Disease may precede or follow Fertilization and it may or m [..]

The co-occurrence of Pregnancy and an Infection. The Infection may precede or follow Fertilization.

The co-occurrence of Pregnancy and Neoplasms. The neoplastic Disease may precede or follow Fertilization.

Medical problems associated with Obstetric Labor, such as Breech Presentation; Premature Obstetric Labor; Hemorrhage; or others. These complications can Affect the well-being of the Mother, the Fetus, [..]

The co-occurrence of Pregnancy and Parasitic Diseases. The parasitic Infection may precede or follow Fertilization.

Complications that Affect Patients during Surgery. They may or may not be associated with the Disease for which the Surgery is done, or within the same surgical procedure.

Pathologic Processes that Affect Patients after a surgical procedure. They may or may not be related to the Disease for which the Surgery was done, and they may or may not be direct results of the Sur [..]

Conditions or Pathological Processes associated with Pregnancy. They can occur during or after Pregnancy, and range from Minor discomforts to serious Diseases that require medical interventions. They [..]

In medicine, a medical problem that occurs during a disease, or after a procedure or treatment. The complication may be caused by the disease, procedure, or treatment or may be unrelated to them.

a situation or detail of a character that complicates the main thread of a plot. A complication builds up and develops the primary or central conflict in a literary work.

The act or process of complicating; the state of being complicated; intricate or confused relation of parts; entanglement; complexity. A person who doesn't fit in with the main scheme of things; a [..]

The occurrence of diseases or medical problems simultaneously in the body.

An unexpected and unwanted result of a medical treatment or surgical procedure. Differs from a side effect, which is an unwanted effect expected to happen sometimes. A side effect can lead to a compli [..]