mouth diameter
51Aphthous ulcer — Infobox Disease Name = Aphthous ulcer Caption = Mouth ulcer on the lower lip DiseasesDB = ICD10 = ICD10|K|12|0|k|00 ICD9 = ICD9|528.2 ICDO = OMIM = MedlinePlus = 000998 eMedicineSubj = ent eMedicineTopic = 700 eMedicine mult = eMedicine2|derm|486 …
52protozoan — /proh teuh zoh euhn/, n., pl. protozoans, (esp. collectively) protozoa / zoh euh/, adj. Biol. n. 1. any of a diverse group of eukaryotes, of the kingdom Protista, that are primarily unicellular, existing singly or aggregating into colonies, are… …
53eye, human — ▪ anatomy Introduction specialized sense organ capable of receiving visual images, which are then carried to the brain. Anatomy of the visual apparatus Structures auxiliary to the eye The orbit The eye is protected from mechanical injury… …
54Lead (tack) — This article is about livestock equipment. For leads used on small animals, see Leash. For the young children s horse show class, see Leadline. For other uses, see Lead (disambiguation). For yet more other uses, see Lead line. Lead clipped to a… …
55River Darent — Confluence of the River Darent (left) and the River Cray on Crayford Marshes. Origin Hills south of Westerham TQ 450 519 …
56Jellyfish — For other uses, see Jellyfish (disambiguation). Jellyfish Temporal range: 505–0 Ma …
57Siphon — Not to be confused with Psiphon. This article is about the domestic device. For the animal organ, see siphon (disambiguation). Siphon principle …
58Dalek variants — …
59Organ pipe — The choir division of the organ at St. Raphael s Cathedral, Dubuque, Iowa. Wood and metal pipes of a variety of sizes are shown in this photograph. An organ pipe is a sound producing element of the pipe organ that resonates at a specific pitch… …
60St. Augustine Monster — The carcass as it appeared after being dug out of the sand. The St. Augustine Monster is the name given to a large unidentified carcass, originally postulated to be the remains of a gigantic octopus, that washed ashore on the United States coast… …
