| projectionist |
a person who operates a film projector. |
| projector |
a machine for projecting an image onto a screen by casting a beam of light through photographic film. |
| prokaryote |
an organism that lacks a nucleus membrane and that reproduces by fission. (Cf. eukaryote.) |
| prolactin |
a pituitary hormone that stimulates milk secretion in mammals. |
| prolapse |
the falling down or slipping out of place of a body part or organ, esp. the uterus. [2 definitions] |
| prolate |
of a sphereoid, elongated or extended along the polar axis. |
| prolegomenon |
a critical, introductory essay in a book. |
| prolepsis |
the anticipation of possible arguments, before they are put forward by an opponent, in order to answer them in advance. [2 definitions] |
| proletarian |
of, pertaining or belonging to, or characteristic of the proletariat. [2 definitions] |
| proletariat |
the working class, esp. those who lack capital and must sell their usu. unskilled labor in order to survive. |
| pro-life |
holding the view that abortion to end a pregnancy is morally wrong. |
| proliferate |
to multiply or grow quickly by, or as though by, cell division and the reproductive processes of living things. [3 definitions] |
| proliferation |
the act or process of proliferating. |
| prolific |
producing young or new growth in abundance; fertile. [2 definitions] |
| proline |
an nonessential amino acids that is found in proteins and collagen. |
| prolix |
wordy and boringly long. [2 definitions] |
| prologue |
an introduction to a spoken or written work such as a speech or play; preface. [3 definitions] |
| prolong |
to make (something) last longer; protract. [2 definitions] |
| prolusion |
a preliminary essay written as an introductory piece for a more detailed work, or any similarly introductory work or performance. |
| prom |
(informal) a formal dance for high school or college students; promenade. |
| promenade |
a recreational or leisurely stroll, esp. in public. [8 definitions] |