Deleting an item from bash history

I was pecking away commands on the bash command line and, without paying attention, I typed in my password when I thought it was needed for a command. But looking up I saw that I was not getting a password request, but was on the command line. Aside from being thankful that I do not use a valid command for a password, I was concerned that I was leaving my password in plain text in my bash history. My home directory is encrypted, so there is little chance that someone will get access to it, but I wanted to delete it nonetheless.