The T-word is often thought of as a hieroglyph of "nails". There are many things named after Ding, and many of them mean nails.
Such as mud ding, link animals, also known as "mud worms" or "soil nails", shaped like nails.
Nail snails, mollusks, shaped like nails.
Cloves are called incense because of its taste, and the ancients also used it to cover up bad breath. So what does the clove of cloves (also known as cloves) mean?
Northern Wei Jia Sixun 'Qi Min Zhi Shu Shu ”
There is no mistake, its flower tube is slender, and the bud as a whole looks like a nail, hence the name lilac. At this time, the buds can be collected and dried as spices. However, the fruit of the clove can also be used as a spice, so the real "lilac" (flower bud) in the spice market is also called "male lilac", and the latter (fruit) is called "mother clove" (mother clove is also called chicken tongue, because it resembles a chicken tongue).
Mother cloves
Mother cloves (after sun-dried)
As for why the bud is male and the fruit is called female, it can be considered from the shape (perhaps the idea of complementing the form), the size of the utility and the stage of fertility, and there is no conclusive conclusion here.
And the clove core lychee everyone knows, because the core is very small, looks like a small clove, so it is called a clove core.
In the same way, the T-shaped image of a horizontal and vertical shape must also penetrate into our cognition.
Ding Dam: "A hydraulic building that guides rivers and protects embankments." One end is connected to the embankment in a T-shaped shape, which can change the flow of water so that the embankment is not washed away, and the Ding dam can make the sediment silt in the dam field to create a new shore."
T-shaped ruler: Also known as T-shaped ruler, it is a "D" shaped ruler with a horizontal gear at one end
And because the English letter T and D are similar, the D shape can also be called T shape.