columnar+mass
21Joint (geology) — Joint sets on a bedding plane in flagstones, Caithness, Scotland …
22Cell — The basic structural and functional unit in people and all living things. Each cell is a small container of chemicals and water wrapped in a membrane. Each cell in the human body there are 100 trillion cells in each of us contains the entire… …
23Trichoplax adhaerens — Taxobox name = Trichoplax adhaerens image caption = Light microscope image of Trichoplax (specimen ca. 0.5 mm across) regnum = Animalia subregnum = Metazoa superphylum = Parazoa phylum = Placozoa genus = Trichoplax species = adhaerens binomial =… …
24gland — An organized aggregation of cells functioning as a secretory or excretory organ. SYN: glandula (1) [TA]. [L. glans, acorn] accessory g. a small mass of glandular structure, detached from but lying near another and larger g., to which it is… …
25Meibomian gland — Front of left eye with eyelids separated to show medial canthus and openings of tarsal (meibomian) glands. Latin glandulae tarsales Gray s …
26Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …
27chromatography — chromatographer, n. chromatographic /kreuh mat euh graf ik, kroh meuh teuh /, adj. chromatographically, adv. /kroh meuh tog reuh fee/, n. Chem. the separation of mixtures into their constituents by preferential adsorption by a solid, as a column… …
28publishing, history of — Introduction an account of the selection, preparation, and marketing of printed matter from its origins in ancient times to the present. The activity has grown from small beginnings into a vast and complex industry responsible for the… …
29Periapical cyst — Classification and external resources CT scan through head showing a right periapical cyst ICD 10 K …
30plant — plantable, adj. plantless, adj. plantlike, adj. /plant, plahnt/, n. 1. any member of the kingdom Plantae, comprising multicellular organisms that typically produce their own food from inorganic matter by the process of photosynthesis and that… …
