- 1[intransitive] leach (from something) (into something) leach out/away (of chemicals, minerals, etc.) to be removed from soil, etc. by water passing through it Nitrates leach from the soil into rivers.
- 2[transitive] leach something (from something) (into something) leach something out/away (of a liquid) to remove chemicals, minerals, etc. from soil The nutrient is quickly leached away.
NAmE//litʃ//(technology)Verb Forms present simple I / you / we / they leach
he / she / it leaches
past simple leached
-ing form leaching