| 释义 |
excystment, n. Biol. and Med.|ɛkˈsɪstmənt|
[f. excyst v. + -ment.]
The process of emerging or being released from a cyst; an instance of this.
1928Physiol. Zoöl. I. 569 Within an hour or more following excystment the animals become gorged with food. 1935Archiv für Protistenkunde LXXXIV. 145 The contractile vacuole appears early in the process of excystment.., though it does not become pulsatile until a more advanced stage of differentiation is reached. 1946Jrnl. Exper. Zool. CIII. 206 The exceptional individuals, which constituted less than 2{pcnt} of the total excystments, emerged near the end of the third hour. 1988Internat. Jrnl. Parasitol. XVIII. 788/2 Carbon dioxide functions as a physiological trigger, setting in train events, which once started, continue even when environmental carbon dioxide is reduced to concentrations too low to initiate excystment. |