acrocentric chromosome n.
A chromosome with the centromere located very close to one end so that the shorter arm is very small.
|a chromosome with the centromere near one end so that one chromosomal arm is short and one is long|
|a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.|
|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|