| 释义 |
ejecta, n. pl.|ɪˈdʒɛktə|
[neut. pl. of pa. pple. of L. eicĕre, f. e- out, forth + iacĕre to cast.]
1. The matter ejected from a volcano.
1886Amer. Meteor. Jrnl. III. iii. 109 Dust and other ejecta played but a secondary part in the production of the phenomena. 1890Nature 16 Oct. 601/2 It may be thought that any volcanic ejecta would speedily melt the snow upon which they fell. 1902Daily Chron. 11 Sept. 6/2 On the afternoon of the 3rd the ejecta was of the colour of sulphur. 1957G. E. Hutchinson Treat. Limnol. I. i. 25 The summit of the volcano usually has a well-defined crater from which ejecta escape to continue the building of the cone.
2. Path. That which is ejected from the body.
1890Billings Med. Dict. I. 433/1 Ejecta, matters thrown out. 1908Practitioner Oct. 601 Frequent vomiting,..the ejecta being often blood-stained and sometimes faecal. 1953Faber Med. Dict. 134/2 Ejecta, matter thrown out; excretions. |