Lean downward
21human 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… …
22Air-fuel ratio — (AFR) is the mass ratio of air to fuel present during combustion. When all the fuel is combined with all the free oxygen, typically within a vehicle s combustion chamber,the mixture is chemically balanced and this AFR is called the stoichiometric …
23performing arts — arts or skills that require public performance, as acting, singing, or dancing. [1945 50] * * * ▪ 2009 Introduction Music Classical. The last vestiges of the Cold War seemed to thaw for a moment on Feb. 26, 2008, when the unfamiliar strains …
24muscle — muscleless, adj. muscly, adj. /mus euhl/, n., v., muscled, muscling, adj. n. 1. a tissue composed of cells or fibers, the contraction of which produces movement in the body. 2. an organ, composed of muscle tissue, that contracts to produce a… …
25Centrifugal force (rotating reference frame) — This article is about the fictitious force related to rotating reference frames. For other uses, see Centrifugal force. Classical mechanics …
26Professional wrestling attacks — Attacking maneuvers are offensive moves in professional wrestling, used to set up an opponent for a submission hold or for a throw. There are a wide variety of attacking moves in pro wrestling, and many moves are known by several different names …
27Street Fighter II V — ストリートファイターⅡ V (Sutorīto Faitā Tsū Bui) Genre Ad …
28pitch — I (New American Roget s College Thesaurus) n. note, modulation, tone; roll, plunge, toss, dip, reel, lurch; slant, slope, drop; ascent, rise, grade, height, range; resin, tar. v. t. throw, toss; build, erect, set, establish; cast, heave. v. i.… …
29Internal combustion engine — The internal combustion engine is an engine in which the combustion of a fuel (normally a fossil fuel) occurs with an oxidizer (usually air) in a combustion chamber. In an internal combustion engine, the expansion of the high temperature and high …
30fall — /fawl/, v., fell, fallen, falling, n. v.i. 1. to drop or descend under the force of gravity, as to a lower place through loss or lack of support. 2. to come or drop down suddenly to a lower position, esp. to leave a standing or erect position… …