monocyclic
21Möbius aromaticity — In organic chemistry, Möbius aromaticity is a special type of aromaticity believed to exist in a number of organic molecules. In terms of MO theory these compounds have in common a monocyclic array of molecular orbitals in which there is an odd… …
22Plant disease epidemiology — is the study of disease in plant populations. Much like diseases of humans and animals, plant diseases occur due to pathogens such as bacteria, viruses, fungi, oomycetes, nematodes, phytoplasmas, protozoa, and parasitic plants.cite book| last… …
23hydrocarbon — hydrocarbonaceous, adj. /huy dreuh kahr beuhn, huy dreuh kahr /, n. any of a class of compounds containing only hydrogen and carbon, as an alkane, methane, CH4, an alkene, ethylene, C2H4, an alkyne, acetylene, C2H2, or an aromatic compound,… …
24Risk factors for breast cancer — Risk factors of breast cancer may be divided into preventable and non preventable. Their study belongs in the field of epidemiology. Breast cancer, like other forms of cancer, is considered to result from multiple environmental and hereditary… …
25Sondheimer , Franz — (1926–1981) British chemist Sondheimer was born at Stuttgart in Germany but moved with his family to Britain in 1937. He was educated at Imperial College, London, where he obtained his PhD in 1948. After serving as a research fellow with Robert… …
26mon|o|nu|cle|ar — «MON uh NOO klee uhr, NYOO », adjective. 1. having only a single nucleus; mononucleate. 2. Chemistry. = monocyclic. (Cf. ↑monocyclic) …
27Alkene — This article is about the chemical compound. For the material, see Olefin fiber. Not to be confused with Alkane or Alkyne. A 3D model of ethylene, the simplest alkene. In organic chemistry, an alkene, olefin, or olefine is an unsaturated ch …
28Resin — Not to be confused with rosin, a particular type of resin. This article is about the plant secretion. For other uses, see Resin (disambiguation). Insect trapped in resin …
29Amanita phalloides — Scientific classification Kingdom: Fungi Division …
30Terpene — Many terpenes are derived commercially from conifer resins, such as those made by this pine. Terpenes (  / …
