geologic time (jē'ə-lŏj'ĭk) Pronunciation Key
(click for larger image in new window) The period of time covering the formation and development of the Earth, from about 4.6 billion years ago to today. |
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question. |