Wednesday word: tetchy
Aug. 10th, 2017 12:34 am![[identity profile]](https://www.dreamwidth.org/img/silk/identity/openid.png)
adjective: irritable, touchy, testy, bad-tempered.
First known use 1592 by Shakespeare in "Romeo and Juliet." Obscure etymology.
sastruga: [sas-truh-guh, sa-stroo-guh]
plural- sastrugi: [sas-truh-gee, sa-stroo-gee]
Noun: Usually used as plural. Sastrugi are wavelike ridges that are sculpted in snowfields by the wind.
Image source
Origin: First known use, 1830-1840. (etymology courtesy of dictionary.com) German < dialectal Russian zastrúga, noun derivative ofzastrugátʾ, zastrogátʾ to plane, shave down (wood), equivalent to za-perfective v. prefix + strugátʾ, strogátʾ to plane, smooth (wood)
The chain of salps is the 'aggregate' portion of the lifecycle. The aggregate individuals are also known as blastozooids; they remain attached together while swimming and feeding, and each individual grows in size. Each blastozooid in the chain reproduces sexually (the blastozooids are sequential hermaphrodites, first maturing as females, and are fertilized by male gametes produced by older chains), with a growing embryo oozoid attached to the body wall of the parent. The growing oozoids are eventually released from the parent blastozooids, and then continue to feed and grow as the solitary asexual phase, thus closing the lifecycle of salps."