back-tube sheet
31textile — /teks tuyl, til/, n. 1. any cloth or goods produced by weaving, knitting, or felting. 2. a material, as a fiber or yarn, used in or suitable for weaving: Glass can be used as a textile. adj. 3. woven or capable of being woven: textile fabrics. 4 …
32human embryology — ▪ biology Introduction the process encompassing the period from the formation of an embryo, through the development of a fetus, to birth. The human body, like that of most animals, develops from a single cell produced by the union of… …
33Ice core — An ice core is a core sample from the accumulation of snow and ice over many years that have re crystallized and have trapped air bubbles from previous time periods. The composition of these ice cores, especially the presence of hydrogen and… …
34Glossary of nautical terms — This is a glossary of nautical terms; some remain current, many date from the 17th 19th century. See also Wiktionary s nautical terms, Category:Nautical terms, and Nautical metaphors in English. Contents: A B C D E F G H I J K L M N O P Q R …
35metallurgy — metallurgic, metallurgical, adj. metallurgically, adv. metallurgist /met l err jist/ or, esp. Brit., /meuh tal euhr jist/, n. /met l err jee/ or, esp. Brit., /meuh tal euhr jee/, n. 1. the technique or science of working or heating metals so as… …
36Youngstown, Ohio — Youngstown redirects here. For other uses, see Youngstown (disambiguation). Coordinates: 41°5′47″N 80°38′57″W / 41.09639°N 80.64917°W …
37Phonograph — Turntable redirects here. For other uses, see Turntable (disambiguation). Edison cylinder phonograph ca. 1899 …
38Geology of Mars — Mars   Mars as seen by the Hubble Space Telescope Designations …
39Polyethylene terephthalate — PETE redirects here. For the first name, see Peter (disambiguation). For other uses, see Pete (disambiguation). Polyethylene terephthalate fibre IUPAC name …
40spider — spiderless, adj. spiderlike, adj. /spuy deuhr/, n. 1. any of numerous predaceous arachnids of the order Araneae, most of which spin webs that serve as nests and as traps for prey. 2. (loosely) any of various other arachnids resembling or… …
