ˌakrōˈkȯrˌdīt noun
( -s )
Etymology: Greek akrochord ōn wart + English -ite
: a mineral MgMn 4 (AsO 4 ) 2 (OH) 4 .4H 2 O(?) consisting of a hydrous basic manganese magnesium arsenate occurring in reddish brown rounded aggregates (hardness 3, specific gravity 3.2)