n. The 23rd letter of the Greek alphabet. See Table at alphabet. [Middle English, from Late Greek, from Greek psei.] |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
n. Parapsychological phenomena or abilities considered as a group. [Shortening and alteration of PARAPSYCHOLOGICAL.] |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
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Tweet abbr. pounds per square inch |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.