Definition of protoplast in English:

protoplast

noun

Botany
  • The protoplasm of a living plant or bacterial cell whose cell wall has been removed.

    • ‘One stage at which the process may break down is the regeneration of plants from the fused protoplasts.’
    • ‘Fibres are often described as cells having no living protoplasts at maturity.’
    • ‘In this plasmolysed cell the protoplast has suffered very intense shrinkage.’
    • ‘The hydrostatic pressure model proposes that statocytes detect the total weight exerted by the protoplast on its cell wall.’
    • ‘A single cell culture, based on protoplasts that were isolated from the leaf mesophyll of tobacco, was used.’

Origin

Late 19th century: from Greek prōtoplastos ‘first formed’, from prōtos ‘first’ + plassein ‘to mould’.

Pronunciation

protoplast

/ˈprəʊtə(ʊ)plɑːst//ˈprəʊtə(ʊ)plast/