protoplast

(redirected from protoplastic)
Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.

protoplast

 [pro´to-plast]
a bacterial, yeast, or fungal cell deprived of its rigid wall but with its plasma membrane intact; the cell is dependent for its integrity on an isotonic or hypertonic medium.

pro·to·plast

(prō'tō-plast),
1. Archaic term meaning the first individual of a type or race.
2. A bacterial cell from which the rigid cell wall has been completely removed; the bacterium loses its characteristic form.
[proto- + G. plastos, formed]

protoplast

/pro·to·plast/ (-plast) a bacterial or plant cell deprived of its rigid wall but with its plasma membrane intact; the cell is dependent for its integrity on an isotonic or hypertonic medium.

protoplast

(prō′tə-plăst′)
n.
A cell of a plant, fungus, bacterium, or archaeon from which the cell wall has been removed, leaving the protoplasm and plasma membrane.

pro′to·plas′tic adj.

protoplast

[prō′təplast]
Etymology: Gk, protos + plassein, to mold
1 (in biology) the protoplasm of a cell without its containing membrane.
2 a first entity or an original. protoplastic, adj.

pro·to·plast

(prō'tō-plast)
A bacterial cell from which the rigid cell wall has been completely removed; the bacterium loses its characteristic form.
[proto- + G. plastos, formed]

protoplast

a CELL from which the CELL WALL has been removed completely.

protoplast

a bacterial or plant cell deprived of its rigid wall but with its plasma membrane intact; the cell is dependent for its integrity on an isotonic or hypertonic medium. In bacteria, specifically refers to gram-positive organisms. See also spheroplast.