I am trying to coin a name for a feature of a particular three-dimensional (molecular biological) structure. The nature of this is irrelevant — I just need an English term (everyday, technical as in engineering, or Latinate) that might serve as a metaphor.
Consider an object attached at one point to a rope or cord. I am looking for a name for the point at which the cord joins the object. My current working term is “tether”, but I’d like to see if I can find something better.
I did consider umbilicus, using the imagery of the attachment of the umbilical cord to the foetus, but the term tends to be used for the navel, which is an indentation and inappropriate in this case. However the object need not be spheroid, like a foetus, but can be flat or cylindrical. I have considered words that simply mean connection — and there may be appropriate ones I have missed — but I’d like to convey the idea of unity more than separation.
I know for a single-word-request — and it must be a single word because of repetition — I am obliged to provide an example. Here it is, but it won’t help very much:
The ........... is a structure found at the edge of a sheet containing a disruption that causes the strand to emerge at right angles to the sheet.
Difficult, but I’d really welcome suggestions, however outrageous.