Summary explanations: 1  Complete summary. 2  Quick summary. 3  Follow a drop. 4  The water cycle in 60 languages.
up the ante. verb phrase. To raise the price, offer, sum in question, etc; increase; make a higher demand: I think I may up the ante to a cool fifty/ The trader decides to up the ante. [1970s+; fr the ante in poker, which gives one the right to take part]
Definition of Antrum. 1. n. A cavern or cavity, esp. an anatomical cavity or sinus. Definition of Antrum. 1. Noun. (biology) A bodily cavity, especially one having bony walls, especially one in the sinuses.