(chemistry) A coordination compound.

Alternative form of coordination compound

(mathematics) Of a complex number x, the complex number ◌̅x formed by changing the sign of the imaginary part: The complex conjugate of a + bi is a - bi.

The fear that an artificial intelligence will turn against humans.

(complex analysis) A number of the form a + bi, where a and b are real numbers and i denotes the imaginary unit

(biology, pseudoscience) The proposition that complex organs such as eyes and flagella must have started existing in their current form; i.e., that they cannot have evolved from previous, less complex stages.

(chemistry) an organometallic compound formed from cyclopentadiene (or a derivative) and a transition element or other metal

(computer science) The study and classification of decision problems by the computational resources—such as time and space—needed by the programs that solve the problems.

a hydrido complex

(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.