| Definition/Meaning | Word/Phrase |
| spatial property possessed by an arrangement or position of things in a straight line or in parallel lines |
alignment
|
| perpendicular distance from the base of a geometric figure to opposite vertex (or side if parallel) |
altitude
|
| magnetic field creates parallel but opposing spins; varies with temperature |
antiferromagnetism
|
| one of several parallel sloping beams that support a roof |
balk
,
baulk
,
rafter
|
| one of the parallel filaments projecting from the main shaft of a feather |
barb
|
| long narrow sandy island (wider than a reef) running parallel to the shore |
barrier island
|
| coral rock parallel to coast, separated by lagoon |
barrier reef
|
| long coral reef near and parallel to the shore |
barrier reef
|
| gymnastic apparatus consisting of two parallel wooden rods supported on uprights |
bars
,
parallel bars
|
| device that produces electricity; may have several primary or secondary cells arranged in parallel or series |
battery
,
electric battery
|
| group of nearly parallel lines of electromagnetic radiation |
beam
,
electron beam
,
ray
|
| splitting a ray into two parallel rays polarized perpendicularly |
birefringence
,
double refraction
|
| file with parallel edges |
blunt file
|
| conductor having low resistance in parallel with another device to divert a fraction of the current |
bypass
,
electrical shunt
,
shunt
|
| (chess) the piece that can move any number of unoccupied squares in a direction parallel to the sides of the chessboard |
castle
,
rook
|
| tomograph that constructs a 3-D model of an object by combining parallel planes |
CAT scanner
,
computerized axial tomography scanner
|
| boat having 2 parallel floats |
catamaran
|
| sailboat with two parallel hulls |
catamaran
|
| sailboat with two parallel hulls held together by single deck |
catamaran
|
| bridge over a ditch consisting of parallel metal bars that allow pedestrians and vehicles to pass, but not cattle |
cattle grid
,
cattle guard
|