concentric cell
chiefly Biology
noun
Any of a number of cells arranged concentrically.
Origin
Early 19th century.
- up to mud
- up to no good
- up to one's armpits
- up to one's ears in
- up to one's elbows in
- up to one's neck in
- up to one's (old) tricks
- up top
- up to par
- up to putty
- up to scratch
- up to snuff
- up to speed
- (up) to the hilt
- up to the mark
- up to the minute
- up to the (or one's) eyeballs
- up to the (or one's) eyes (in)
- uptown
- uptowner
- uptrend
- upturn
- UPU
- uPVC
- upvote