Entry 2 senses · 2 variants Webster, 1913 Turn-sick · Turn·-sick · IPA a. n. 01 a. Giddy. 1. Giddy.[Obs.] 02 n. A disease with which sheep are sometimes affected; gid; sturdy. See Gid. 1. A disease with which sheep are sometimes affected; gid; sturdy. See Gid.(Far.) See: Gid