| rostrad | 1. In a direction toward any rostrum. 2. Situated nearer a rostrum or the snout end of an organism in relation to a specific reference point; opposite of caudad. Origin: L. Rostrum, beak, + -ad, toward (05 Mar 2000) |
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| rostral | Relating to any rostrum or anatomical structure resembling a beak. Synonym: rostralis. Origin: L. Rostralis, fr. Rostrum, beak (05 Mar 2000) |
| rostral lamina | A whitish line appearing on perfectly median sections of the brain as a thin bridge connecting the rostrum of the corpus callosum with the lamina terminalis; the rostral lamina contains no commissural fibres; instead, it corresponds to the line along which the pia mater reflects from the medial surface of one hemisphere to that of the other. Synonym: lamina rostralis, rostral layer, teniola corporis callosi. (05 Mar 2000) |
| rostral layer | A whitish line appearing on perfectly median sections of the brain as a thin bridge connecting the rostrum of the corpus callosum with the lamina terminalis; the rostral lamina contains no commissural fibres; instead, it corresponds to the line along which the pia mater reflects from the medial surface of one hemisphere to that of the other. Synonym: lamina rostralis, rostral layer, teniola corporis callosi. (05 Mar 2000) |
| rostral neuropore | The temporary opening at the extreme rostral (cephalic) end of the early embryonic forebrain; closes at the 20th somite stage. Synonym: anterior neuropore, cranial neuropore. (05 Mar 2000) |
| rostral transtentorial herniation | Displacement of anterior cerebellar structures through the incisura, with or without caudorostral brainstem shift. (05 Mar 2000) |
| rostralis | Synonym: rostral, rostral. Origin: L. Fr. Rostrum, beak (05 Mar 2000) |
| rostrate | Having a beak or hook. Origin: L. Rostratus (05 Mar 2000) |
| rostrate pelvis | A pelvic deformity in osteomalacia; the pressure of the trunk on the sacrum and lateral pressure of the femoral heads produce a pelvic aperture that is three-cornered or has the shape of a heart or cloverleaf, while the pubic bone becomes beak-shaped. Synonym: beaked pelvis, rostrate pelvis. (05 Mar 2000) |
| rostrated | 1. Having a process resembling the beak of a bird; beaked; rostellate. 2. Furnished or adorned with beaks; as, rostrated galleys. Origin: L. Rostratus, fr. Rostrum a beak. See Rostrum. Source: Websters Dictionary (01 Mar 1998) |