Recurrent sudden brief attacks with altered consciousness, loss of spirit, pale complexion, upward staring by the eyes, clenched jaw, foaming...

A plant that grows well in dry conditions. A plant that is adapted to, and needs, dry desert climate or...

A medical condition in which the eye fails to produce tears. Advanced vitamin A deficiency in which the epithelium of...

A chemical (as a drug, pesticide, or carcinogen) that is foreign to a living organism. Substances foreign to the body,...

Unique class of biologically active phenol compounds with the molecular formula C13H8O2 possessing antioxidant properties, discovered in the mangosteen fruit....

A flavoprotein enzyme containing a molybdenum cofactor (Moco) and (Fe2S2) clusters, involved in purine metabolism. In humans, inhibition of xanthine...

Also known as X-linked hypogammaglobulinemia, XLA, Bruton type agammaglobulinemia, Bruton syndrome, or sex-linked agammaglobulinemia; a rare x-linked genetic disorder that...

Vacuum tube designed to produce X‐ray photons. In the tube, there is a cathode to emit electrons into the vacuum...

Limited part of the spectrum of electromagnetic radiation; a self‐propagating transverse oscillating wave of electric and magnetic fields.  

Dryness of the mouth due to lack of or inadequate secretions (e.g., inadequate salivary secretions). Dry mouth; reduced amount of...