I don’t know if there is a name for it, but the dot is a carbon atom and the three lines are hydrogen atoms.

It might be a Lewis diagram for a carbon compound where the dots represent electrons and the lines chemical bonds, usually covalent bonds.

What is the dot and lines?

https://en.wikipedia.org/wiki/Escitalopram Is in the picture. What is the name of the six shorting lines?

Like this one for Carbon Monixide.

@Tropical_Willie Not the bond that I was looking for. Was looking for the bonds in the center of my link in Escitalopram.

It it’s the one I’m thinking your talking about it’s a single bond. What you are seeing is the representation of a single stereoisomer of the carbon.

I see:

https://en.wikipedia.org/wiki/Methenium
https://en.wikipedia.org/wiki/Methyl_radical
and https://en.wikipedia.org/wiki/Methyl_group

for CH3.

The double lines inside the hexagons indicate double bonding between carbons. Carbons have 4 electrons they can share. The carbon pairs are sharing two of the four. The two additional bonds for the carbons are not shown and are assumed to be for hydrogen.

carbon monoxide?

@Zaku Your third link has it.