Entry 1 sense Webster, 1913 Udaler · U·dal·er · IPA /ˈjuːdələ(ɹ)/ 01 n. In the Shetland and Orkney Islands, one who holds property by udal, or allodial, right. 1. In the Shetland and Orkney Islands, one who holds property by udal, or allodial, right.