Category: B

  • Belief’s syndrome

    A rare, multisystem, chronic, recurrent disease of unknown cause, marked by ulceration of the mouth and genitalia and by uveitis. The central nervous system, blood vessels, joints, and intestinal tract may be involved. It is genetically associated with HLA-B51. The disease occurs worldwide but is most common in the eastern Mediterranean area and eastern Asia.…

  • Behavioral system model

    A conceptual model of nursing developed by Dorothy Johnson. The person is regarded as a behavioral system with seven subsystems — attachment, dependency, ingestion, elimination, sexuality, aggression, achievement. The goal of nursing is to restore, maintain, or attain behavioral system balance and stability.  

  • Caring behavior

    The actions or responses of providing patient services.  

  • Beevor’s sign

    Upward (cephalad) movement of the umbilicus when the neck of a patient with paralysis of the lower rectus abdominis muscles is flexed. It is one marker of fascioscapular muscular dystrophy and is found in other conditions (e.g., in some patients who have suffered trauma to the trunk, abdomen, or spinal cord).  

  • Beeturia

    Deep red or pink coloration of urine caused by betanin, the pigment in beets. This condition is common in iron-deficient adults and children and can occur after ingestion of even one beet.  

  • Beeswax

    Yellow wax obtained from the honeycomb of bees. A purified form is used in ointments.  

  • Beer’s operation

    A flap operation for cataract or artificial pupil.  

  • Beer’s law

    The basic law that is the foundation for all absorption photometry. It predicts the linear relationship between the monochromatic light absorbance (A) of a solution and its concentration (c). The law is given as A — εlc, where A = absorbance, ε = molar absorptivity, 1 = path distance, and c = concentration. It is also…

  • Bee

    An insect of the order Hymnoptera and superfamily Apoidea. Included is the common honeybee, Apis mellifera, which produces honey and beeswax.  

  • Bedtime resistance

    Misbehavior, stalling tactics, or temper tantrums used by children to avoid adhering to a structured sleep schedule. Bedtime resistance (also known as “bedtime refusal”) may be caused by a variety of conditions, including fear of the dark, loneliness, or the desire for more attention among many other conditions.