All definers having voted, I am closing the round early.
A plerodienique, as Johnny Barrs knew and Tim Bourne guessed, is a 19th century music box with dual (exchangeable)
cylinders. You can listen to one playing the overture to Rossini's opera "William Tell" here:
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=video&cd=&ved=2ahUKEwiW-aro-5WTAxUp1vACHWzKAXcQtwJ6BAgSEAI&url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DiB4HX5hMVdE&usg=AOvVaw2pLT_LwBmgaEdDF2FpH3di&opi=89978449Who was that masked man? It's Tim Bourne, our new dealer. Hi-yo Silver! Away!
1. denoting a system in which exactly two outcomes are both exclusive
and exhaustive.
Submitter: Widdis Votes: 2 & 9 0 + 0 = 0
Voted for by:
2. denoting a surface or texture with a subtle, built-up layering,
similar to lichen on stone.
Submitter: Madnick Votes: 7 & 8 0 + 2 = 2
Voted for by: Widdis; Abell
3. a dual cylinder mechanical music box.
Submitter: Dictionary Vote: N/A D1
Voted for by: Bourne
4. occurring many times a day; frequent.
Submitter: Bourne Votes: *3* & 8 2 + 3 = 5
Voted for by: Lodge; Keating; Boxer
5. occurring at irregular intervals.
Submitter: Lodge Votes: 4 & 11 0 + 3 = 3
Voted for by: Keating; Shepherdson; Abell
6. up to the present time; up-to-date.
Submitter: Keating Votes: 4 & 5 0 + 2 = 2
Voted for by: Mallach; Naylor
7. [Theol.] fulfilling a divine promise.
Submitter: Mallach Votes: 6 & 8 0 + 3 = 3
Voted for by: Madnick; Embler; Shepherdson
8. encompassing both completeness and perfection; a state of being
entire and flawless.
Submitter: Embler Votes: 7 & 11 0 + 4 = 4
Voted for by: Madnick; Bourne; Mallach; Naylor
9. an old building restored at great expense, but with limited skill and
taste.
Submitter: Naylor Votes: 6 & 8 0 + 1 = 1
Voted for by: Widdis
10. rich in iron-bearing minerals.
Submitter: Boxer Votes: 4 & 11 0 + 0 = 0
Voted for by:
11. a fully saturated diene - where both double bonds are split and
fulfilled with non hydrogen atoms.
Submitter: Barrs Vote: DQ DQ + 3 = 3
Voted for by: Lodge; Embler; Boxer
No def: Shepherdson Votes: 5 & 7 0 + 0 = 0
No def: Abell Votes: 2 & 5 0 + 0 = 0