nacreous
41Mineralized tissues — Mineralized tissues: sea sponge, sea shells, conch, dentin, radiolarian, antler, bone Mineralized tissues are biological tissues that incorporate minerals into soft matrices. Typically these tissues form a protective shield or structural… …
42pearly — I (New American Roget s College Thesaurus) adj. nacreous, silvery, grayish, whitish; lustrous. See color. II (Roget s IV) modif. Syn. opaline, opalescent, nacreous; see iridescent , pearl , silver 1 …
43Iridescent — Ir i*des cent (?; 277), a. [L. iris, iridis, the rainbow: cf. F. iridescent.] Having colors like the rainbow; exhibiting a play of changeable colors; nacreous; prismatic; as, iridescent glass. See {iridescence}. [1913 Webster] …
44mussel — noun Etymology: Middle English muscle, from Old English muscelle, from Vulgar Latin *muscula, from Latin musculus muscle, mussel Date: before 12th century 1. a marine bivalve mollusk (especially genus Mytilus) usually having a dark elongated… …
45Unidentified flying object — UFO redirects here. For other uses, see UFO (disambiguation). Photograph of alleged UFO, New Jersey, July 31, 1952 A term originally coined by …
46Cirrus cloud — A sky filled with many types of cirrus clouds Cirrus clouds (cloud classification symbol: Ci) are atmospheric clouds generally characterized by thin, wispy strands, giving them their name from the Latin word cirrus meaning a ringlet or curling… …
47Contrail — Vapor Trail redirects here. For other uses, see Vapor Trail (disambiguation). For other uses, see Contrail (disambiguation). Cirrus aviaticus Contrails from a S7 Airlines Tupolev Tu 154M …
48Cumulonimbus cloud — Cumulonimbus incus Abbreviation Cb Symbol …
49Cumulus cloud — Cumulus redirects here. For other uses, see Cumulus (disambiguation). Cumulus Cloud Abbreviation Cu Genus Cumulus (heap) Altitude …
50Mollusca — Temporal range: Cambrian–Recent …
