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cyclopentadienyl complex
(chemistry) an organometallic compound formed from cyclopentadiene (or a derivative) and a transition element or other metal
hydro complex
apartment complex
(US) a set of buildings containing many apartments and ancillary functions
QRS complex
(medicine) A series of graphical deflections on a typical electrocardiogram that represents the electrical changes generated by the depolarization of the heart ventricles.
hydrido complex
(chemistry) A complex hydride, such as sodium borohydride, containing a hydride ligand bonded to a central atom.
launch complex
The facilities and support equipment needed to assemble, test and launch a rocket-powered vehicle
complex sentence
(grammar) a sentence that contains an independent clause as well as one or more dependent clauses, such as a relative clause, an adverbial clause, or a noun clause.
complex plane
(mathematics) a representation of the space of complex numbers
K-complex
(electrencephalography) A waveform that occurs approximately every 60–100 seconds during stage 2 of NREM sleep, and which consists of a brief negative high-voltage peak (usually >100µV), followed by a slower positive complex ~350–550ms, and at 900ms a final negative peak.
