以太

yǐtài
(loanword) ether (hypothetical medium that transmits light waves)

CEDICT

loanword

Entry Composition

=1 以 yǐ old variant of 以 yǐ
=1 以 yǐ old variant of 以 yǐ
=1 以 yǐ
  1. to use
  2. by means of
  3. according to
  4. in order to
  5. because of
  6. at (a certain date or place)
2 太 tài
  1. highest
  2. greatest
  3. too (much)
  4. very
  5. extremely