Exotropia
Exotropia: Divergent gaze. Also known as external strabismus and, pejoratively, walleye.
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- Expectorant
Expectorant: A medication that helps bring up mucus and other material from the lungs, bronchi, and trachea. An example of an expectorant is guaifenesin, which promotes drainage of mucus from the lungs by thinning the mucus, and also lubricates the irritated respiratory tract.
- Expectoration
Expectoration: A big polysyllabic word for sputum or the act of bringing up and spitting out sputum. From the Latin expectorare, to expel from the chest, from ex-, out of + pectus, chest.
- Expiration date
Expiration date: The date for a drug estimated for its shelf life with proper storage in sealed containers away from harmful and variable factors like heat and humidity. The expiration date of a medicine is based on data, called accelerated stability data, from testing by the manufacturer, that show the product will be good for […]
- Explant
Explant: 1. The original meaning: to transfer tissue from the body and place it in a culture medium for growth; and the tissue that is transferred. To remove a device that had been implanted.
- Expressed sequence tag (EST)
Expressed sequence tag (EST): A unique stretch of DNA within a coding region of a gene that is useful for identifying full-length genes and serves as a landmark for mapping. An EST is a sequence tagged site (STS) derived from cDNA. An STS is a short segment of DNA which occurs but once in the […]