riddle2

verb

• 1make many holes in (someone or something), especially with gunshot:his car was riddled by sniper fire
• fill or permeate (someone or something), especially with something undesirable:the existing law is riddled with loopholes her body was riddled with arthritis

• 2pass (a substance) through a large coarse sieve:for final potting, the soil mixture is not riddled
• remove ashes or other unwanted material from (something, especially a fire or stove) with a sieve: she heard Mr Evans riddling the fire

noun

• a large coarse sieve, especially one used for separating ashes from cinders or sand from gravel.