| pilot plant |
pilot study |
pilot survey |
Piltdown Man |
Piltdown man |
| pilus |
pi-meson |
pimpernel |
PIN |
pin |
| pinacoid |
pinacol rearrangement |
pinch analysis |
pinch-and-swell |
pinch effect |
| pinch point |
Pinckney, Charles Cotesworth (1746–1825) |
Pincus, Gregory Goodwin |
pincushion distortion |
Pindaris |
| PIN diode |
pineal eye |
pineal gland |
pineapple |
PING |
| ping |
pingback |
pinger |
ping flooding |
pingo |
| ping-pong |
pin grid array |
ping storm |
pin header |
pinite |
| pink |
Pink Book |
Pinkerton, Allan (1819–84) |
Pinkie, Battle of (10 September 1547) |
pinna |
| pinnacle reef |
pinnate fractures |
pinnular plates |
pinnules |
Pinochet Ugarto, Augusto (1915–2006) |
| pinocytosis |
pinout |
PIN photodiode |
Pinus longaeva |
Pinwheel Galaxy |
| PIO |
PIOCW |
pion |
Pioneer |
pioneer community |
| Pioneer Venus |
pi orbital |
pipe |
pipe chase |
pipefish |
| pipeline |
pipeline processing |
pipelining |
Pipe Nebula |
piperidine |
| pipe-roll |
pipestill |
pipetrack |
pipette |
pipette analysis |
| pipework |
piping and instrumentation diagram |
pipit |
pipkrake |
PIPO |
| Pippard, Sir Alfred Brian |
piracy |
piranha |
Pirani gauge |
PIR detector |
| Piripauan |
piRNA |
pirsonnite |
Pisces |
Piscis Austrinid meteors |
| Piscis Austrinus |
Pishgam |
doubt |
doubt, Cartesian |
doughnut city |
| Douglas Aircraft Company |
Douglas, Clifford (1879–1952) |
Douglas-Home, Sir Alec (1903–95) |
Douglass, Andrew Ellicott |
Douglass, Frederick (1817–95) |
| dove |
Dowding, Hugh Baron (1882–1970) |
Dow, Herbert Henry (1866–1930) |
do-while loop |
Dow Jones |
| down |
downcomer |
downconvert |
down feathers |
down-hole hammer drilling |
| Downing Street Declaration |
downlap |
downline |
downlink |
download |
| download manager |
download site |
down operation |
down payment |
downrange |
| downregulation |
downsampling |
downside risk |
downsizing |
Downs process |
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