okay, okay, okay -- I can take three hints.

caradea - 2 votes
a) A fine-tuning key below the bridge and fingerboard of a stringed instrument.

TheFallibleFiend
b) A knot commonly used for rigging sails in the 17th century.

Jackie - 1 vote
c) A hybrid tree

JosieWales
d) The colloquial generalism used by morticians for all of the body waste that has to be removed from a body before it can be embalmed.

Wordwind - 1 vote
e) A striated body tissue arranged in segmental bands consisting of long cells that contract when stimulated and produce motion in arthropoda

OED/Webster's New 20th C. - 4 votes (mav voted by PM)
f) The fire-spitting trick of a carnival performer.

consuelo - 1 vote
g) The residue that remains caught between your teeth after eating a dried fig

AnnaStrophic - 1 vote
h) [chiefly Brit.] 18th-century vernacular term for human head, brain (c.f. noggin)

TEd Remington - 3 votes
j) A jot or tittle; something very small.

Jazzoctopus
k) A "fold" in the shell structure of an atom, causing a disruption in the functioning of the subatomic particles.

Bobyoungbalt - 1 vote
l) An arbirary or fictitious entry or figure used to juggle accounts so as to produce a desired total or result.

Sparteye
m) A gelatinous substance, made from agricultural byproducts, used by Mennonites to lubricate farm machinery.

wordcrazy
n) A thickened turpentine mostly used in oil paints, so named because of its color which resembles a ripe fig.

tsuwm - 1 vote
o) 1) A product of the imagination 2) something totally illusory.

milum - 5 votes + 1 own vote + 2 late votes = 5
p) [Printing] something omitted.
After 70 years and 414,825 words defined, is was dicovered that the word figgum was left out of the Oxford English Dictionary. James Murray simply misplaced it. The original definition, now obsolete, is - a pear tree.

WhitmanO'Neill
r) 19th Century American colloquialism referring to suspicously erroneous bookkeeping (i.e. That's a bunch of figgum!).

Flatlander - 1 vote [Max cast the 1st vote here, thereby dooming this to 1 vote for the balance of the polling]
s) A mischievous spirit in Scottish folklore

belMarduk - 1 vote + 1 own vote
t) [Hatmaking term] The starched swath of material that surrounds the crown of the hat, near the rim, on which is attached the decorative accessories (e.g. feather or flowers)

kudos to maverick and bobyoungbalt and chemengX and Hyla for guessing (or knowing, in mav's case) the correct def'n

15 participants, 17 def'ns, 26 voters - I think these all set new standards. great round, everyone!

(hogmaster®)