“SULCAL” is a valid word. — 8 points Scrabble

callsa telephone connection
sculla long oar that is mounted at the stern of a boat and moved left and right to propel the boat forward
cullsthe person or thing that is rejected or set aside as inferior in quality
scall
caulspart of the peritoneum attached to the stomach and to the colon and covering the intestines

calla telephone connection
saul(Old Testament) the first king of the Israelites who defended Israel against many enemies (especially the Philistines)
cullthe person or thing that is rejected or set aside as inferior in quality
lacsresinlike substance secreted by certain lac insects; used in e.g. varnishes and sealing wax
alls
caulpart of the peritoneum attached to the stomach and to the colon and covering the intestines
sall

allquantifier; used with either mass or count nouns to indicate the whole number or amount of or every one of a class
las
sal
sacan enclosed space
lacresinlike substance secreted by certain lac insects; used in e.g. varnishes and sealing wax
alsthickening of tissue in the motor tracts of the lateral columns and anterior horns of the spinal cord; results in progressive muscle atrophy that starts in the limbs
sau

asa very poisonous metallic element that has three allotropic forms; arsenic and arsenic compounds are used as herbicides and insecticides and various alloys; found in arsenopyrite and orpiment and realgar
usNorth American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776
laa white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth
ala silvery ductile metallic element found primarily in bauxite

SULCAL