Antivaccinationist (n.)
definition: An antivaccinist.

Antivaccinationist is an 18 letter word that begins with an A and ends in a T

Antivivisectionist (n.)
definition: One opposed to vivisection

Antivivisectionist is an 18 letter word that begins with an A and ends in a T

Poupart's ligament
definition: A ligament
Of fascia extending in most mammals from the ventral side of the ilium to near the symphysis of the pubic bones.
Poupart's ligament is an 18 letter word that begins with a P and ends in a T

Theophilanthropist (n.)
definition: A member of a deistical society established at Paris during the French revolution.

Theophilanthropist is an 18 letter word that begins with a T and ends in a T

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