let say i have a field abc__c in account object and i want to check where this field has been used then i can do following things
1) retrieve all org metadata through ant or workbench or eclipse and do a text search in that data - (it is ineffective as it will just search the field name and there can be many field with same name or there can be code commented which will also come in search)
2) delete the field in salesforce org, if there is any dependency of it then the references will come in next page (Effective but more manual work)
Here in this question the thing that i want to find out is that, is there any function in salesforce which is available in metadata Api through which we can get the field dependency that salesforce find out during field deletion