FIDELITY ADVISOR INCOME REPLACEMENT 2040 MUTUAL FUNDS USMF - What does FIDELITY ADVISOR INCOME REPLACEMENT 2040 MUTUAL FUNDS USMF mean? - What does FIDELITY ADVISOR INCOME REPLACEMENT 2040 MUTUAL FUNDS USMF stand for? - FIDELITY ADVISOR INCOME REPLACEMENT 2040 MUTUAL FUNDS USMF meaning