[pahy-rik, pir-ik] /ˈpaɪ rɪk, ˈpɪr ɪk/
of, relating to, or resulting from burning.
[pir-i-deen, -din] /ˈpɪr ɪˌdin, -dɪn/ noun, Chemistry. 1. a colorless, flammable, liquid organic base, C 5 H 5 N, having a disagreeable odor, usually obtained from coal or synthesized from acetaldehyde and ammonia: used chiefly as a solvent and in organic synthesis. /ˈpɪrɪˌdiːn/ noun 1. a colourless hygroscopic liquid with a characteristic odour. It is […]
[pahy-rid-ee-uh m, pi-] /paɪˈrɪd i əm, pɪ-/ Pharmacology, Trademark. 1. a brand of .
[pir-i-doh-stig-meen] /ˌpɪr ɪ doʊˈstɪg min/ noun, Pharmacology. 1. a cholinesterase inhibitor, C 9 H 1 3 BrN 2 O 2 , used in its bromide form in the treatment of myasthenia gravis.
/ˌpɪrɪˈdɒksəl/ noun 1. (biochem) a naturally occurring derivative of pyridoxine that is a precursor of a coenzyme (pyridoxal phosphate) involved in several enzymic reactions. Formula: (CH2OH)(CHO)C5HN(OH)(CH3) pyridoxal pyr·i·dox·al (pĭr’ĭ-dŏk’səl) n. An aldehyde that is one of several active forms of pyridoxine and is important in amino acid synthesis.