What is the meaninig of amastigote?

An amastigote is a morphological form of certain protozoan parasites, notably within the genus Leishmania and Trypanosoma. In this stage, the organism is non-flagellated and usually found within host cells, particularly macrophages. Amastigotes are crucial for the lifecycle of these parasites, as they replicate intracellularly, leading to disease in the host.