[Taxacom] canliculate

John Grehan calabar.john at gmail.com
Tue Aug 4 22:42:17 CDT 2020


It is a cross section (transverse) shape. As Mary says, it depends on the
audience for understanding the terminology. With that in mind I will
probably have to stick to descriptive adjectives such as a tubular U-shaped
channel since it is a channel, but neither u or V in cross section, but
closing over slightly at the top like an inverted omega symbol (but without
the lateral extensions of the omega symbol). There will be a photo so in
the end perhaps the words do not mean so much.

John Grehan

On Tue, Aug 4, 2020 at 6:43 PM Dennis During <dcduring at gmail.com> wrote:

> Is the U shape in plan or section?
>
> On Tue, Aug 4, 2020, 14:17 John Grehan via Taxacom <
> taxacom at mailman.nhm.ku.edu> wrote:
>
>> It would be nice if there were a good word for u-shaped, and also for a
>> u-shape that curves medially towards the distal ends (sort of like the
>> Greeek letter omega), but if there isn't, then there isn't ,and will I
>> manage anyway.
>>
>> John Grehan
>>
>> On Tue, Aug 4, 2020 at 2:06 PM Les Watling via Taxacom <
>> taxacom at mailman.nhm.ku.edu> wrote:
>>
>> > I was curious about canaliculate being used to describe a U-shaped
>> > structure so I checked various dictionaries online. One a medical
>> > dictionary made the distinction between canliculate and valleculate. The
>> > former is more like a canal, i.e., with steep sides, and the latter is
>> more
>> > wide valley-like. In the medical dictionary the valleculate is used for
>> > wide depressions and canaliculate for narrower, probably more
>> steep-sided
>> > depressions.
>> >
>> > Geologists tend to just use U-shaped or V-shaped for valleys carved by
>> > glaciers (in the former case) or rivers and streams (in the latter
>> case),
>> > but it seems that maybe medicine and botany have coined specific terms,
>> > based most likely on Latin words, for structures or features with
>> specific
>> > attributes.
>> >
>> > When I first started out in taxonomic work, I was concerned that my
>> > vocabulary of adjectives, in particular, was not very good. So, I
>> bought a
>> > book called Bersteins Reverse Dictionary, which helped a lot, but
>> wasn't as
>> > easy to use as one might think.
>> >
>> > In the end, in taxonomy, words are great if their meaning is not too
>> broad
>> > or ambiguous, but I can also agree with Ken Kinman that maybe using
>> > "U-shaped" is better than trying to come up with a word that has more
>> > precision than that....
>> >
>> > Best,
>> > Les
>> >
>> >
>> >
>> > Les Watling
>> > Professor, Dept. of Biology
>> > 216 Edmondson Hall
>> > University of Hawaii at Manoa
>> > Honolulu, HI 96822
>> > Ph. 808-956-8621
>> > Cell: 808-772-9563
>> > e-mail: watling at hawaii.edu
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