  The 3 main cell types in human blood are erythrocytes (red blood cells), leukocytes (white blood cells), and thrombocytes (platelets).here are several different types and sub-types of white blood  cells. The three main types are granulocytes, monocytes, and  lymphocytes, and each of these types have sever â¦ al sub-types under  them.
whiner definition: Noun (plural whiners) 1. One who whines about perceived problems; a complainerI never realized that Felicia was such a whiner, but she complained steadily about various minor discomforts for the entire road trip.... Definitions
Definition of flounder for English Language Learners. : 1  to move in an awkward way with a lot of difficulty and effort. : 2  to be unsure about what to do or say. : 3  to have a lot of problems and difficulties.