platybasia plat·y·ba·si·a (plāt’ĭ-bā’sē-ə,)
A developmental anomaly of the skull in which the base of the posterior cranial fossa bulges upward.
[plat-ee-suh-fal-ik] /ˌplæt i səˈfæl ɪk/ adjective, Cephalometry. 1. having a head whose cranial vault is broad or flat.
platycephaly plat·y·ceph·a·ly (plāt’ĭ-sěf’ə-lē) n. Flatness of the skull in which the vertical cranial index is below 70.
[plat-ik-nee-mee-uh, plat-i-nee-] /ˌplæt ɪkˈni mi ə, ˌplæt ɪˈni-/ noun 1. (in the shinbone) the state of being laterally flattened.
[plat-ee-fish] /ˈplæt iˌfɪʃ/ noun, plural (especially collectively) platyfish (especially referring to two or more kinds or species) platyfishes. 1. any of several small, yellow-gray freshwater of the genus Xiphophorus, especially X. variatus, of Mexico: popular in home aquariums, in which the color varies widely.