From Longman Dictionary of Contemporary Englishcoircoir /kɔɪə $ kɔɪr/ noun [uncountable] TIMthe rough material that covers the shell of a coconut, used for making mats, ropes etc
Examples from the Corpus
coir• The peat-substitute, known as coir, is now used in 95 percent of composts applied at Kew.• Use composted bark or coir Keep well watered until well established.• Marketed as blocks of pure coir or as loose compost mixed with additives to improve drainage.• Apparently both the tomatoes in the peat and those in the coir had been grown under exactly the same conditions.• The coir is blended with a mix of nitrogen, phosphate and potassium fertilizers to form the new compost.• In just the same way, you simply can't use coir in exactly the same way as you would use peat.Origin coir (1500-1600) Tamil kayivu “rope” 