Hem, hem, (Spens.) them.
Hemeralopia, hem′e-ra-lō′pi-a, n. day-blindness, a defect of vision except in artificial or dim light; also applied to night-blindness. [Gr. hēmera, a day, alaos, blind, ōps, the eye.]
Hemianopsia, hem′i-an-op′si-a, n. complete or partial blindness as to half the field of vision—also Hemianōp′ia, Hemiō′pia, Hemiop′sia, Hem′opsy.—adjs. Hemianop′tic, Hemiop′ic. [Gr. hēmi-, half, an-, neg., opsis, sight.]
Hemicrania, hem-i-krā′ni-a, n. headache confined to one side of the head.—adj. Hemicran′ic.
Hemicycle, hem′i-sī-kl, n. a semicircle, a room with seats so arranged. [Fr.,—Gr.]
Hemihedrism, hem-i-hē′drizm, n. a property of crystals of being Hemihē′dral, or having half the number of symmetrically arranged planes occurring on a holohedron.—n. Hemihē′dron. [Gr. hēmi-, half, hedra, a seat.]
Hemiolic, hem-i-ol′ik, adj. constituting the proportion of 1½ to 1, or of 3 to 2. [Gr. hēmi-, half, holos, whole.]
Hemionus, hē-mī′o-nus, Hemione, hem′i-ōn, n. the half-ass, or dziggetai. [Gr. hēmi-, half, onos, an ass.]
Hemiplegia, hem-i-plē′ji-a, n. paralysis of one side of the face or body—also Hem′iplegy.—adj. Hemipleg′ic. [Gr. hēmi-, half, plēgē, a blow.]
Hemiptera, hem-ip′tėr-a, n. an order of Insecta, in the classification of Linnæus: in later systems, the same as Rhyncota, including aphides, coccus insects, cicadas, bugs, water-scorpions, lice (Ametabola).—n. Hemip′ter.—adjs. Hemip′teral, Hemip′teran, Hemip′terous. [Gr. hēmi-, half, pteron, a wing.]