loosely packed structure
11Nanogeoscience — is the study of nanoscale phenomena related to geological systems. Predominantly, this is interrogated by studying environmental nanoparticles between 1 100 nanometers in size. Other applicable fields of study include studying materials with at… …
12Superior colliculus — Brain: Superior colliculus Section through superior colliculus (unlabeled) showing path of oculomotor nerve …
13poison — poisoner, n. poisonless, adj. poisonlessness, n. /poy zeuhn/, n. 1. a substance with an inherent property that tends to destroy life or impair health. 2. something harmful or pernicious, as to happiness or well being: the poison of slander. 3.… …
14separation and purification — ▪ chemistry Introduction in chemistry, separation of a substance into its components and the removal of impurities. There are a large number of important applications in fields such as medicine and manufacturing. General principles… …
15Cesanite — General Category Sulfate minerals Chemical formula Ca2Na3[(OH)(SO4)3] Strunz classification 07.BD.20 Crystal symme …
16Black-tailed prairie dog — At Wichita Mountains Wildlife Refuge …
17Tissue (biology) — This article is about biological tissue. For other uses, see Tissue. Cross section of sclerenchyma fibers in plant ground tissue …
18Plant stem — Stem showing internode and nodes plus leaf petioles A stem is one of two main structural axes of a vascular plant. The stem is normally divided into nodes and internodes, the nodes hold buds which grow into one or more leaves, inflorescence… …
19tire — tire1 /tuyeur/, v., tired, tiring, n. v.t. 1. to reduce or exhaust the strength of, as by exertion; make weary; fatigue: The long walk tired him. 2. to exhaust the interest, patience, etc., of; make weary; bore: Your stories tire me. v.i. 3. to… …
20Cone-in-cone structures — in limestone. Cone in cone structures are secondary sedimentary structures that form in association with deeper burial and diagenesis. They consist of concentric inter bedded cones of calcite or more rarely gypsum, siderite or pyrite …
