a colour formed by mixing two secondary colours
noun, Ecology. 1. a carnivore at the topmost level in a food chain that feeds on other carnivores; an animal that feeds only on secondary consumers. tertiary consumer See under consumer.
- Tertiary dentin
tertiary dentin n. Morphologically irregular dentin formed in response to an irritant, such as caries, disease, or drilling to prepare a cavity for filling. Also called irregular dentin, reparative dentin.
noun, Biochemistry. 1. the way in which the helixes or beta structures of a polypeptide are folded or arranged into a three-dimensional configuration. tertiary structure The three-dimensional structure of a protein or nucleic acid. Amino acids form secondary structures such as alpha helices, beta sheets, and random coils, which in turn fold on themselves to […]
noun, Pathology. 1. the third stage of syphilis, characterized by involvement of the internal organs, especially the brain, spinal cord, heart, and liver. tertiary syphilis n. The final stage of syphilis, marked by gumma formation, cellular infiltration, and cardiovascular and central nervous system lesions.
[tur-shee-uh m kwid; Latin ter-ti-oo m kwid] /ˈtɜr ʃi əm ˈkwɪd; Latin ˈtɛr tɪˌʊm ˈkwɪd/ noun 1. something related in some way to two things, but distinct from both; something intermediate between two things. tertium quid /ˈtɜːtɪəm ˈkwɪd/ noun 1. an unknown or indefinite thing related in some way to two known or definite things, […]