Here are some of the most common types of eruptions: In a Hawaiian eruption, fluid basaltic lava is thrown into the air in jets from a vent or line of vents (a fissure) at the summit or on the flank of a volcano.
The underscore sign is mainly used to show a space where a space is not allowed, such as in internet usernames, email addresses and some computer programs. The underscore looks like a dash below the letters (_).
Wiktionary (0.00 / 0 votes) Rate this definition: underscore (Noun). An underline; a line drawn or printed beneath text; the character. underscore (Noun). A piece of background music. underscore (Verb). To underline; to mark a line beneath text. underscore (Verb). To emphasize or draw attention to.iktionary (0.00 / 0 votes) Rate this definition: underscore (Noun). An underline; a line drawn or printed beneath text; the character. underscore (Noun). A piece of background music. underscore (Verb). To underline; to mark a line beneath text. underscore (Verb). To emphasize or draw attention to.