of absorption or emission

SPECTRUM
WordClue
RAYbeam of light or radiation
SIRman of a higher rank or position
BANDjazz or absorption
DARKcomplete or partial absence of light
RATEof interest or fertility
COURTappellate or supreme
DANCEtango or flamenco
FLUIDwater or petroleum
MOTORdiesel or stepping
ORDERfungus or stop-loss
PARTYRepublican or Conservative
POWERsolar or of will
RIVERNeva or Mekong
ADDICTof caffeine or cocaine
COLUMNvertebral or of newspaper
DISCORDLack of concord, agreement or harmony
TASTINGsmall amount of food or drink
PRESSUREatmospheric or of blood
ATTRIBUTEcharacteristic or quality of a thing
SMUGGLINGillegal movement of goods or people
SPECTRUMof absorption or color
HEROof Alexandria, mathematician