| Ulatisian |
u-law |
Ulcanian |
ULDB |
ulexite |
| ullage rocket |
ulna |
Ulster |
Ulsterian |
Ulster Unionist Parties |
| Ulster Volunteers |
ultimate analysis |
ultimate bearing capacity |
ultimate-cycle tuning method |
ultimate oxygen demand |
| ultimate strength |
ultimate tensile strength |
ultimobranchial bodies |
ultisol |
ultisols |
| ultrabasic rock |
ultracentrifugation |
ultracentrifuge |
ultracold atoms |
ultra-compact dwarf galaxy |
| ultradian rhythm |
ultra extended graphics array |
ultrafast laser spectroscopy |
ultrafiltration |
ultraforming process |
| ultra high-definition |
ultra high frequency |
ultrahigh frequency |
ultra high-pressure processing |
ultra high temperature |
| Ultra-Long Duration Balloon |
ultra-luminous infrared galaxy |
ultramafic |
ultrametric |
ultramicroscope |
| ultramicrotome |
ultramylonite |
ultra orthoflow process |
ultraplinian eruption |
ultrasonic cleaning |
| boundary representation |
boundary-scan testing |
boundary slip |
boundary stratotype |
boundary value problem |
| boundary-value problem |
boundary wave |
boundary zonal |
bounded above |
bounded below |
| bounded delay |
bounded function |
bounded rationality |
bounded sequence |
bounded set |
| bounded space |
bounded variation |
bound moisture |
bound occurrence |
bounds registers |
| bound state |
boundstone |
bound variable |
bound–bound transition |
bound–free transition |
| Bounty mutiny (1789) |
Bourbaki, Nicolas |
Bourbon |
Bourdon gauge |
bourgeoisie/proletariat |
| Bourguiba, Habib ibn Ali (1903–2000) |
bourn |
bourne |
bournonite |
bouton |
| Boutros-Ghali, Boutros (1922–2016) |
Bouwers telescope |
BOV |
Boveri, Theodor Heinrich |
Bovet, Daniel |
| bovine spongiform encephalopathy |
bow-and-arrow rule |
Bowell, Sir Mackenzie (1823–1917) |
Bowen fluorescence |
Bowen, Ira Sprague |
| Bowen, Ira Sprague (1898–1973) |
Bowen, Norman Levi (1887–1956) |
Bowen ratio (B) |
Bowen’s ratio |
Bowen’s reaction principle |
| Bowen’s reaction series |
bowerbird |
Bowersox, Kenneth Dwane (1956– ) |
bowl |
bowl centrifuge |
| bowl cultures |
Bowley coefficient of skewness |
Bowley index |
Bowley, Sir Arthur Lyon (1869–1957) |
Bowman’s capsule |
| bow shock |
bow shock crossing |
bowsprit |
Bow Street Runners |
bow-tie antenna |
| bow-tie reflection |
bow trend |
box |
box-and-whisker diagram |
boxcar trend |
| box classification |
boxer |
Boxer Rising (1899–1900) |
box fold |
Box, George Edward Pelham (1919–2013) |
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