sieve plate


Also found in: Dictionary, Medical, Wikipedia.
Related to sieve plate: sieve tube

sieve plate

[′siv ‚plāt]
(botany)
A perforated section of the wall of a component member of a sieve tube.
(chemical engineering)
A distillation-tower tray that is perforated so that the vapor emerges vertically through the tray, passing through the liquid holdup on top of the tray; used as a replacement for bubble-cap trays in distillation. Also known as sieve tray.