Its funny you would use the word biology, since that in it self contradicts your whole arguement, which is still wrong. It doesn't matter what "us growers" refer to with how count your veg time. A "seedling" is definitely a real botany term, and is part of the plants life cycle. The biology of the plant and of all plants defines this term. You are the one that is trying to remove that period and just call it veg time.
Your right this is very googleable. Thats why I googled a simple info-graphic to make it easy for you to understand. I just choose one, but there were many. All showing a seedling stage
. Nutrient bottles, and grow guides since the beginning of time have all defined a seedling stage.
So thanks for playing but you're wrong, you can't redefine biology terms just because you count that as veg time
.
I only brought up the flower period transition because that's another way some growers just do things. Lots of growers will refer to 12/12 time, but that IS NOT the same as flowering time. If that isn't made clear to new growers, they think the plant is flowering once they switch their lights. Then 7-9 weeks later they don't understand why their plants aren't ready yet.
I stopped "counting" weeks/days years ago. I watch my plants and veg them till they are ready to flower and then flower till they are matured and ready to harvest. The last time I counted time was while running testers for Sin City Seeds. I kept notes for that since it was part of the tester process.
I also should add that my seedlings and clones get full strength veg nutes as soon as they have roots.