vacuity是什么意思音标:英 [və'kju:ətɪ]美 [væˈkjuɪtɪ, və-]

n. 空虚, 空白, 愚蠢, 茫然若失, 无意义的事

n the absence of matter
n a region that is devoid of matter
n total lack of meaning or ideas