baseplaten.
/ˈbeɪspleɪt/, U.S. /ˈbeɪsˌpleɪt/ 1. A sheet of metal situated at or forming the bottom of an object.
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the world > space > relative position > low position > [noun] > lowest position > bottom or lowest part > specific
basec1390
bottom boarda1589
bottom timber1651
baseplate1788
1788 Gentleman's Mag. Mar. 210/1 Fig. 2. The base plate, of cast-iron.
1804 European Mag. & London Rev. May 324/2 Should the diameter of the barrel gradually lessen near the orifice of the powder chamber, the ball might be firmly rammed down, and rest on the shoulders of it; but care should be taken in this case to make the base plate sufficiently strong.
1879 Cassell's Techn. Educator (new ed.) IV. 243/1 At the back of the base-plate is a small stud.
1920 Pop. Sci. Monthly Feb. 82/2 The legs are made of U-shaped pressed steel, and have wide base-plates that are screwed to the floor.
1960 F. G. Mann & B. C. Saunders Pract. Org. Chem. (ed. 4) iv. 482 This is carried by the baseplate of an ordinary metal clamp-stand and the nitrometer is held upright by a clamp gripping the upper part of its stem.
2005 P. H. Davies Photographers Pract. Handbk. 132/1 The standard photographic thread for base plates of cameras and B&S joints is 1/4in Whitworth.
2. Virology. A complex structure composed of protein subunits that is located at the base of the tail in certain phages and is involved in the initial steps of infection by such viruses.
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1961 Virology 14 430/1 The parental bacteriophage..is a beautiful particle with a hexagonal base plate.
1988 Q. N. Myrvik & R. S. Weiser Fund. Med. Bacteriol. & Mycol. (ed. 2) iii. 52 When phage λ encounters an appropriate host cell, the base plate of the phage's ‘tail’ attaches to a specific site (receptor ) on the bacterial surface.
1993 Internat. Jrnl. Med. Microbiol., Virol., Parasitol. & Infectious Dis. 279 307 One of these phages displayed an isometric 30 nm head, a neck and a contractile tail 50–64 nm in length with a baseplate.
2007 G. Mosig & F. Eiserling in R. Calendar Bacteriophages (ed. 2) xviii. 248/2 T4 baseplates consist of a central component (‘hub’), six outer ‘wedges’, and six tail ‘pins’.
This entry has been updated (OED Third Edition, September 2011; most recently modified version published online December 2021).
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