fosterer noun. ['fɒst(ǝ)rǝ] LME.
[formed as FOSTERAGE + -ER¹.]
1. A person who fosters a child, a foster-parent. LME.

2. A person who or thing which encourages or promotes something or someone; a patron. L16.

3. A foster-brother; a foster-child. Anglo-Irish. M18.

[TahlilGaran] English Dictionary ▲