Dictionary » S » Slug



1. A drone; a slow, lazy fellow; a sluggard.

2. A hindrance; an obstruction.

3. (Science: zoology) Any one of numerous species of terrestrial pulmonate mollusks belonging to limax and several related genera, in which the shell is either small and concealed in the mantle, or altogether wanting. They are closely allied to the land snails.

4. (Science: zoology) Any smooth, soft larva of a sawfly or moth which creeps like a mollusk; as, the pear slug; rose slug.

5. A ship that sails slowly. His rendezvous for his fleet, and for all slugs to come to, should be between Calais and Dover. (Pepys)

6. [Perhaps a different word] An irregularly shaped piece of metal, used as a missile for a gun.

7. A thick strip of metal less than type high, and as long as the width of a column or a page, used in spacing out pages and to separate display lines, etc. Sea slug.

8. (Science: zoology) Any nudibranch mollusk. A holothurian. Slug caterpillar. Same as slugworm.

Origin: OE. Slugge slothful, sluggen to be slothful; cf. LG. Slukk low-spirited, sad, E. Slack, slouch, D. Slak, slek, a snail.

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Results from our forum

Which animal is this?

... down the street I noticed this weird bug. It looks like some kind of worm with a beak like a bird and an antenna on his head which looks like a slug eye. Does anybody know how it is called?

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by SajkD
Mon Nov 26, 2012 12:54 am
Forum: Zoology Discussion
Topic: Which animal is this?
Replies: 5
Views: 3832

Snail/Slug with brown tubes on its back?

I found this on my porch today and, to me, it looks like fungi/mould or an anemone but it was definitely moving, albeit slowly, and I'm in Laos which has no coastline whatsoever. Any ideas? Thanks in advance!

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by Barns
Sun Sep 18, 2011 7:44 am
Forum: Zoology Discussion
Topic: Snail/Slug with brown tubes on its back?
Replies: 0
Views: 1510

Fish tank microrganisms under a scope...

... than bacteria. http://www.youtube.com/watch?v=4Sq9EgbxGUU The video is half 40X power and then half 400X power. We think the large 'slug-like' organisms are some kind of paramecium...just a guess. There are also round things that seem to have two circular areas on them...and there ...

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by chuckngrace
Tue Jan 25, 2011 3:40 am
Forum: Molecular Biology
Topic: Fish tank microrganisms under a scope...
Replies: 0
Views: 991

Photosynthetic Sea Slug

... algae. Even their genes code for producing enzymes involved with photosynthesis. Check it out! http://www.wired.com/wiredscience/2010/01/green-sea-slug/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+wired%2Findex+%28Wired%3A+Index+3+%28Top+Stories+2%29%29&utm_content=Google+Feedfetcher

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by plasmodesmata11
Tue Jan 12, 2010 2:31 am
Forum: Zoology Discussion
Topic: Photosynthetic Sea Slug
Replies: 2
Views: 1847


... and is black, with a white strip down its back and has a blue belly it also leaves like a slimy trail behind it where ever it goes, almost like a slug not not quite. i was wondering what sort of worm this is, what it does, why it is different than the other ground worms and why there arent any ...

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by val71
Sun Jul 19, 2009 3:07 pm
Forum: Zoology Discussion
Topic: worms
Replies: 4
Views: 3975
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