erup·tive /-tɪv/ 形容詞
1. Breaking out or bursting forth.
The sudden glance
Appears far south eruptive through the cloud. --Thomson.
2. Med. Attended with eruption or efflorescence, or producing it; as, an eruptive fever.
3. Geol. Produced by eruption; as, eruptive rocks, such as the igneous or volcanic.
E·rup·tive, n. Geol. An eruptive rock.
adj 1: igneous rock produced by eruption and solidified on or near
the earth's surface; rhyolite or andesite or basalt;
"volcanic rock includes the volcanic glass obsidian"
2: of igneous rock that has solidified beneath the earth's
surface; granite or diorite or gabbro [syn: irruptive, plutonic]
3: erupting or tending to erupt; "a geyser is an intermittently
eruptive hot spring"