1. To curdle and sour, as milk.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• lappers,
• loper,
• popper,
• oopper,
• lkpper,
• llpper,
• lppper,
• l0pper,
• l9pper,
• lo-per,
• lopler,
• lop-er,
• lop0er,
• loppwr,
• loppsr,
• loppper,
• loppur,
• loppar,
• Lopar,
• luppar

• loafer,
• slipper,
• Loper,
• louver,
• Loeber,
• loop,
• lobar,
• lopes,
• looper,
• flipper,
• lepper,
• sloppier,
• floppier,
• hopper,
• Loped,
• lover,
• lope,
• lober,
• clipper,
• louviere,
• copper.

The adjective form of the word "lopper" would be "lopperish".

The plural of the "lopper" can be the "loppers".

The singular of the "lopper" can be the "lopper".