| CHLOROPLAST | • chloroplast n. (Cytology) An organelle, found in the cells of green plants and in photosynthetic algae, where photosynthesis… • CHLOROPLAST n. a plastid that contains chlorophyll and is the site of photosynthesis. |
| CHROMOPLAST | • chromoplast n. (Biology) Any plastid in which a pigment is synthesized or stored. • CHROMOPLAST n. a colored plastid usually containing red or yellow pigment, such as carotene. |
| GONIMOBLAST | • gonimoblast n. (Biology) A sporogenous filament (or bundle of such filaments) in the fertilized carpogonium of red algae. • GONIMOBLAST n. in the red seaweeds, a spore-bearing filament that springs from the fertilized carpogonium. |
| HEMATOBLAST | • hematoblast n. Alternative form of haematoblast. • HEMATOBLAST n. a blood platelet, also HAEMATOBLAST. |
| KINETOPLAST | • kinetoplast n. (Microbiology) A disk-shaped mass of circular DNA inside a large mitochondrion, found specifically in… • kinetoplast n. A kinetoplastid. • KINETOPLAST n. a DNA body located near the base of the flagellum in flagellate protozoa, also KINETONUCLEUS. |
| LIPIDOPLAST | • LIPIDOPLAST n. a small particle in plant cytoplasm, esp. that of seeds, in which fat is stored. |
| LYMPHOBLAST | • lymphoblast n. (US, cytology, oncology) An immature lymphocyte; they proliferate uncontrollably in lymphoblastic leukemia. • LYMPHOBLAST n. an abnormal cell, the production of which is linked to lymphoblastic leukaemia. |
| MEGALOBLAST | • megaloblast n. An abnormally large red blood cell associated with pernicious anemia and with folic acid deficiency. • MEGALOBLAST n. a large erythroblast that appears in the blood esp. in pernicious anemia. |
| MELANOBLAST | • melanoblast n. The precursor cell of a melanocyte. • MELANOBLAST n. a cell that is a precursor of a melanocyte or melanophore. |
| NEMATOBLAST | • nematoblast n. (Biology) A spermatocyte or spermoblast. • NEMATOBLAST n. a stinging thread cell containing a nematocyst, aka cnidoblast. |
| ODONTOBLAST | • odontoblast n. A cell on the outer surface of dental pulp that produces tooth dentin. • ODONTOBLAST n. a tooth cell in the surface of dental pulp that produces dentine. |
| SPHEROPLAST | • spheroplast n. (Cytology) A cell from which the cell wall has been removed. • SPHEROPLAST n. a bacterium or yeast cell that is modified, as by enzymatic action, so that there is partial loss of the cell wall and increased osmotic sensitivity. |
| TROPHOBLAST | • trophoblast n. (Cytology) The membrane of cells that forms the wall of a blastocyst during early pregnancy, providing… • TROPHOBLAST n. the outermost layer of cells in the morula that attaches the fertilized ovum to the uterine wall and acts as a nutritive pathway. |