(of a real-valued function on a topological space) Such that, for each fixed number, the subspace of points whose images are at least that number is closed.

(botany) That part of a leaf and petiole that grows from an apical meristem.

(computing) The area of memory between 640 kB and 1 MB in an IBM-compatible PC.

plural of upper middle class

One of the subdivisions of the state Assam, Republic of India.

(dated) The ten thousand people, more or less, who are highest in position or wealth; the upper class; the aristocracy.

plural of upper respiratory tract

plural of stiff upper lip

plural of upper esophageal sphincter

A region of South Sudan