[1] : The Collaborative International Dictionary of English v.0.48

hemlock \hem"lock\, n. oe. hemeluc, humloc, as. hemlic,
   hymlic.
   1. bot. the name of several poisonous umbelliferous herbs
      having finely cut leaves and small white flowers, as the
      cicuta maculata, cicuta bulbifera, and cicuta
      virosa, and the conium maculatum. see conium.
      1913 webster

   note: the potion of hemlock administered to socrates is by
         some thought to have been a decoction of cicuta
         virosa, or water hemlock, by others, of conium
         maculatum.
         1913 webster

   2. bot. an evergreen tree common in north america abies
      canadensis or tsuga canadensis; hemlock spruce.
      1913 webster

            the murmuring pines and the hemlocks. --longfellow.
      1913 webster

   3. the wood or timber of the hemlock tree.
      1913 webster

   ground hemlock, or dwarf hemlock. see under ground.
      1913 webster
see also:
cicuta maculata cicuta bulbifera cicuta virosa conium maculatum conium cicuta virosa 
conium maculatum abies canadensis tsuga canadensis ground hemlock dwarf hemlock 
ground 

[2] : The Collaborative International Dictionary of English v.0.48

pitch \pitch\, n. oe. pich, as. pic, l. pix; akin to gr. ?.
   1. a thick, black, lustrous, and sticky substance obtained by
      boiling down tar. it is used in calking the seams of
      ships; also in coating rope, canvas, wood, ironwork, etc.,
      to preserve them.
      1913 webster

            he that toucheth pitch shall be defiled therewith.
                                                  --ecclus.
                                                  xiii. 1.
      1913 webster

   2. geol. see pitchstone.
      1913 webster

   amboyna pitch, the resin of dammara australis. see
      kauri.

   burgundy pitch. see under burgundy.

   canada pitch, the resinous exudation of the hemlock tree
      abies canadensis; hemlock gum.

   jew's pitch, bitumen.

   mineral pitch. see bitumen and asphalt.

   pitch coal min., bituminous coal.

   pitch peat min., a black homogeneous peat, with a waxy
      luster.

   pitch pine bot., any one of several species of pine,
      yielding pitch, esp. the pinus rigida of north america.
      1913 webster
see also:
pitchstone amboyna pitch dammara australis kauri burgundy pitch burgundy 
canada pitch abies canadensis jew's pitch mineral pitch bitumen 
asphalt pitch coal pitch peat pitch pine pinus rigida 

Canadensis >> C Words
Canadensis, definition of term: Canadensis
canadensis_pag1.html

Abies >> A Words
Abies, definition of term: Abies
abies_pag1.html