Drugs Information Online
Drugs and diseases reference index

Drugs and diseases reference index
Search
EN


Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «S»:

  1. Spectral karyotype (SKY) Spectral karyotype (SKY)
    Spectral karyotype(SKY): A visualization of all of the chromosomes in the genome all together with each chromosome labeled with a different color. The SKY technique is useful for identifying chromosome abnormalities....
  2. Spectrophobia Spectrophobia
    Spectrophobia: An abnormal and persistent fear of ghosts. Sufferers of spectrophobia experience undue anxiety even though they realize their fear is irrational. They may fear going into woods, empty houses or dark places and may react with alarm at strange or unexplained noises. No doubt Hollywo...
  3. Spectrophotometer Spectrophotometer
    Spectrophotometer: A device which measures the amount of ultraviolet light absorbed by a substance. For example, vitamin A absorbs ultraviolet light so that a spectrophotometer can measure within minutes with almost perfect accuracy the amount of vitamin A in a given food. The spectrophotometer, a k...
  4. Speculum Speculum
    Speculum: An instrument used to widen an opening to look within a passage or a cavity. For example, a speculum may be used to widen the opening of the vagina so that the cervix is more easily visible. Other examples include the nasal speculum to look up into the nostrils and the ear speculum to ...
  5. Speculum, ear Speculum, ear
    Speculum, ear: An instrument inserted into the auditory canal of the ear to increase the circumference of the tunnel-shaped canal walls. (The auditory canal begins at the circular opening of the ear and continues a distance of about one inch [about 2 1/2 cm] to the eardrum, or tympanic membrane....
  6. Speculum, nasal Speculum, nasal
    Speculum, nasal: An instrument used to widen the opening of a nostril so the inside can be more easily seen. "Speculum" is the Latin word for mirror....
  7. Speculum, vaginal Speculum, vaginal
    Speculum, vaginal: An instrument used to widen the opening of the vagina so that the cervix is more easily visible. "Speculum" is the Latin word for mirror....
  8. Speech disorder Speech disorder
    Speech disorder: A disorder affecting the ability to produce normal speech. Speech disorders may affect articulation (phonetic or phonological disorders); fluency (stuttering or cluttering); and/or voice (tone, pitch, volume, or speed). Most speech disorders have their roots in oral-motor diff...
  9. Speech therapist Speech therapist
    Speech therapist: An older term for a speech- language pathologist....
  10. Speech therapy Speech therapy
    Speech therapy: The treatment of speech and communication disorders. The approach used depends on the disorder. It may include physical exercises to strengthen the muscles used in speech (oral-motor work), speech drills to improve clarity, or sound production practice to improve articulation. ...
  11. Speech, esophageal Speech, esophageal
    Speech, esophageal: See: Esophageal speech....
  12. Speech-language  pathologist Speech-language pathologist
    Speech-language pathologist: A specialist who evaluates and treats communication disorders and swallowing problems. A speech-language pathologist is sometimes called a speech therapist or speech pathologist. Speech pathologists usually have an MA or doctorate in their specialty, as well as a Cert...
  13. Speed Speed
    Speed: Common street name for a stimulant drug, especially for an amphetamine. Amphetamines have been used to treat hyperactivity in children, the symptoms of narcolepsy, and as an appetite suppressant and they are also frequently abused as a stimulant of the central nervous system....
  14. Sperm Sperm
    Sperm: A sperm is the male "gamete" or sex cell. It combines with the female "gamete," called an ovum, to form a zygote. The formation process is called "fertilization." (see ovum, zygote). ...
  15. Sperm function Sperm function
    Sperm function: The capability of sperm to function -- to penetrate and fertilize the egg....