no transparent is when you can see through something
"Frequency" is a term used to express in formal terms how high a note is.
The scientific name for how high or low a note is is intonation. If you play a note and it's flat from the ideal pitch, you increase your air flow and tighten your embouchure to get the right sound, and that's called working on your intonation.
in music we call this "pitch" in science we call it "frequency"
The scientific name for a grasshopper is Orthoptera caelifera. A quick note: scientific names are always Latin.
Diatomophyceae or Bacillariophyta .Note it is group name of diatoms .
octave
The word to describe how high or low a musical note is, is pitch.
It is a Crested Shelduck (note spelling) Tadorna cristata
A paedofile
Carolus Linnaeus included kraken as cephalopods with the scientific name Microcosmus in the first edition of his Systema Naturae (1735.)Please note the kraken is a legendary sea monster out of Icelandic/Norse myth and saga.
Of course you can name your seahorse if it is your pet!
I think pitch is the word you are looking for.