a blastomere of medium size that is formed by certain types of cleavage
mesomere in American English
(ˈmezəˌmɪər, ˈmes-, ˈmizə-, -sə-)
noun Embryology
1.
a blastomere of intermediate size between a micromere and a macromere
2.
the intermediate zone of the mesoderm
Word origin
[1900–05; meso- + -mere]This word is first recorded in the period 1900–05. Other words that entered Englishat around the same time include: clone, decompression, geopolitics, hormone, internshipmeso- is a combining form meaning “middle,” used in the formation of compound words. Otherwords that use the affix meso- include: Mesolithic, mesometeorology, mesopause, mesopelagic, mesosome
Examples of 'mesomere' in a sentence
mesomere
No mesomere articulates with multiple radials on either its pre- or post-axial face.
Emma eJude, Zerina eJohanson, Anton eKearsley, Matt eFriedman 2014, 'Early evolution of the lungfish pectoral fin endoskeleton: evidence from the MiddleDevonian (Givetian) Pentlandia macroptera', Frontiers in Earth Sciencehttp://journal.frontiersin.org/Journal/10.3389/feart.2014.00018/full. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)