blood circulation via the pumping of the heart pushing blood through closed vessels

plural of close-stool

plural of close call

(science fiction) A chain of events in which someone or something time travels to the past as a means to fulfill their role in the history exactly as it already happened, thus implying impossibility to change the past.

plural of closed time loop

(physics) A worldline that returns to its starting point.

plural of closed timelike curve

(phonetics, of a vowel) pronounced with the tongue in a position approximately two-thirds of the way between an open and a close vowel

Alternative form of shut the door on

Obsolete form of close-stool.