persistent smell
21Virtual world — A virtual world is an online community that takes the form of a computer based simulated environment through which users can interact with one another and use and create objects.[1] The term has become largely synonymous with interactive 3D… …
22Post-concussion syndrome — Classification and external resources ICD 10 F07.2 ICD 9 310.2 …
23mental disorder — Any illness with a psychological origin, manifested either in symptoms of emotional distress or in abnormal behaviour. Most mental disorders can be broadly classified as either psychoses or neuroses (see neurosis; psychosis). Psychoses (e.g.,… …
24Body odor — Classification and external resources ICD 10 L75.0 ICD 9 705.89 …
25Chlorine — This article is about the chemical element. For the bleach, see Sodium hypochlorite. For the upcoming film, see Chlorine (film). sulfur ← chlorine → argon F ↑ Cl ↓ Br …
26Taste — (or, more formally, gustation) is a form of direct chemoreception and is one of the traditional five senses. It refers to the ability to detect the flavor of substances such as food and poisons. In humans and many other vertebrate animals the… …
27illusion — illusioned, adj. /i looh zheuhn/, n. 1. something that deceives by producing a false or misleading impression of reality. 2. the state or condition of being deceived; misapprehension. 3. an instance of being deceived. 4. Psychol. a perception, as …
28Polar bear — This article is about the animal. For other uses, see Polar bear (disambiguation) …
29Philodendron — Taxobox name = Philodendrons image width = 250px image caption = Tree Philodendron ( Philodendron bipinnatifidum ) regnum = Plantae divisio = Magnoliophyta classis = Liliopsida ordo = Alismatales familia = Araceae subfamilia = Aroideae tribus =… …
30metaphysics — /met euh fiz iks/, n. (used with a sing. v.) 1. the branch of philosophy that treats of first principles, includes ontology and cosmology, and is intimately connected with epistemology. 2. philosophy, esp. in its more abstruse branches. 3. the… …
