Third-person singular simple present indicative form of fall back on.
Falls-back-on Sentence Examples
For the other half he falls back on ratiocination.
On the other hand, for the history of Italy and western Europe he falls back on Roman annalists, especially, it seems, on Claudius Quadrigarius and Valerius Antias - a most unfortunate choice - and from them too he takes the annalistic mould into which his matter is cast.
At the end their voices were strong enough to insist upon the diplomatic action which at no point falls back on the sword; Lord Derby (foreign minister) being among the first to make a stand on that resolution, though he was not the first seceder from the government.
The assurance which the believer has of salvation he receives from the operation and witness of the Holy Spirit; but this again rests on the divine choice of the man to salvation; and this falls back on God's eternal sovereign purpose, whereby He has predestined some to eternal life while the rest of mankind are predestined to condemnation and eternal death.