from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A horny, sulfur-containing protein related to keratin that forms the skeletal structure of certain classes of sponges.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A horny, sulfur-containing protein related to keratin that forms the skeletal structure of certain classes of sponges proteinaceous compounds of which the spicules in Demospongiae are composed.
from the GNU version of the Collaborative International Dictionary of English
- n. The chemical basis of sponge tissue, a nitrogenous, hornlike substance which on decomposition with sulphuric acid yields leucin and glycocoll.
from The Century Dictionary and Cyclopedia
- n. The proper horny or fibrous substance of sponges; ceratose or ceratode. Also spongiolin.
Sorry, no etymologies found.
Dr. Ledenfeld again illustrated this stage of his lecture by means of a number of microscopic slides in which the variety of shape and size of these spicules and "spongin" fibers were shown.
The spicules are joined together and cemented by a body that has been named "spongin," which has much the same chemical composition as silk, and, like silk, is very elastic.
In some cases the skeleton seems to be more or less replaced by sand, the small grains of which are cemented together by the "spongin."
In some varieties of sponges, especially in the kinds which come into the market, the skeleton is almost entirely composed of fibers of pure "spongin."
You ain't goin 'to do no spongin' off me just because I'm marryin 'your sister.
As for that old thing that helps you at the toll-gate, and as for the young man that's spongin 'on you, I've no doubt they've got a mighty poor opinion of you.
Additionally, spongin-permeating red algae occurred in at least 7 sponge species.
Activity under partially anaerobic conditions also supports the role of this enzyme in the degradation of the spongin tissue.
April 15, 2008 at 10:42 am but that’s bettur than spongin’ off his frendz
Well, if ye want to know, I mean that Parson John is a rogue, an 'that you are nuthin' but a young sucker, an impudent outcast, spongin 'fer yer livin' upon others. "