Perspicibilis. Adjective. Clearly visible.
"I've got it! This time, I've got it for sure!"
"Okay, calm down. Got what?"
"A signal! It's a real, honest to God signal, the clearest I've picked up so far. We've got to get after them, they're moving away."
"Slow down! What kind of signal?"
"Positronic, Will! It's a positronic signal! It's him, come on, we've got to get moving, they're heading towards the Neutral Zone, if we..."
"Geordi! It's three forty in the morning!"
"I don't care what time it is, we have to go now!"
"Out of the question, Lieutenant!"
"Oh Will, don't, c'mon..."
"Geordi, I can't just order a course change in the middle of the night! This isn't the first time you've found something, just for it to end up a wild goose chase. If it's still there, we'll pick up the signal in the morning, and, with the captain's permission, change course. Now go get some sleep."
"Will, please..."
"Don't make me pull rank, Lieutenant."
"... Yes, sir."