particle board

on-board digital computer / on-board computer

Warning beeps when board is armed with motors off when idle (repeats until board is disarmed or throttle is increased)

beta particle

particle beam

particle detector

particle-beam weapons

salt particle

sand particle

dust filter / dust shield, particle filter

dust particle

dust shield / dust filter, particle filter

particle filter / dust shield, dust filter

wave-motion particle orbital speed

soot particle

alpha particle

across-the-board

board instrument

board of officers

Defense Board

Defense Science Board (DSB)

display board

draft board

functional capability board (FCB)

information operations coordination board (IOCB)

joint coordination board (JCB)

joint coordination board working group (JCBWG)

joint targeting coordination board (JTCB)

Logistics Coordination Board (LCB) (NATO)

Military Committee Joint Standardization Board (NATO)

motion imagery standards board (MISB)

off-board sensors

on-board ammunition supply