crab·grass or crab grass 
(krăbgrăs′)
(krăbgrăs′)n.
Any of certain annual grasses of the genus Digitaria, having prostrate stems that root at the nodes and widely naturalized in North America as weeds in lawns and agricultural fields.
- potassium iodide
- potassium muriate
- potassium nitrate
- potassium permanganate
- potassium sodium tartrate
- potassium sulfate
- potation
- potato
- potato beetle
- potato blight
- potato bug
- potato chip
- potatory
- potato skin
- potato yam
- pot-au-feu
- Potawatomi
- potbellied
- potbellied pig
- potbellied stove
- potbelly
- potbelly stove
- potboil
- potboiler
- potbound