Synapsid
synapsid
(sĭ-nāp’sĭd)
A reptile with one temporal opening on each side of the skull. Synapsids evolved in the late Permian Period and were characterized by carrying their limbs under their body and developing front teeth that were different from their back teeth. One group of synapsids, the therapsids, gave rise to the mammals. Compare anapsid, diapsid, therapsid.
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- Synapsis
noun, plural synapses [si-nap-seez] /sɪˈnæp siz/ (Show IPA) 1. Also called syndesis. Cell Biology. the pairing of homologous chromosomes, one from each parent, during early meiosis. 2. Physiology. synapse. noun (pl) -ses (-siːz) 1. (cytology) the association in pairs of homologous chromosomes at the start of meiosis 2. another word for synapse synapsis syn·ap·sis (sĭ-nāp’sĭs) […]
- Synapte
noun, Eastern Church. 1. a litany.
- Synaptic
noun, plural synapses [si-nap-seez] /sɪˈnæp siz/ (Show IPA) 1. Also called syndesis. Cell Biology. the pairing of homologous chromosomes, one from each parent, during early meiosis. 2. Physiology. synapse. adjective 1. of or relating to a synapse noun (pl) -ses (-siːz) 1. (cytology) the association in pairs of homologous chromosomes at the start of meiosis […]
- Synaptical
noun, plural synapses [si-nap-seez] /sɪˈnæp siz/ (Show IPA) 1. Also called syndesis. Cell Biology. the pairing of homologous chromosomes, one from each parent, during early meiosis. 2. Physiology. synapse. noun (pl) -ses (-siːz) 1. (cytology) the association in pairs of homologous chromosomes at the start of meiosis 2. another word for synapse synapsis syn·ap·sis (sĭ-nāp’sĭs) […]
- Synaptic-cleft
noun, Physiology. 1. the small gap, measured in nanometers, between an axon terminal and any of the cell membranes in the immediate vicinity. synaptic cleft n. See synaptic gap.