initial

What does the initials mean?

At first; Prefix

Initial letter; The first letter of a Chinese syllable

Sign with one's initials

Marginal primitive cell

Marginal protocell [seen in plants] The body is initially static, and the spring is initially unstretched.

At first, the object was stationary and the spring was not stretched. Embryonic primitive cell

At first, the embryonic primordial cells went well.

At first, everything went well. This is very familiar to beginners.

This is familiar to newcomers.