athero- Combining form meaning gruellike, soft, pasty materials; atheroma, atheromatous. [G. athērē, gruel, porridge]Click to see full answer. In respect to this, what does ather o mean?ather/o. means plaque or fatty substance. atheroma (ath-er-OH-mah) is a fatty deposit within the wall of an artery (-oma means tumor)Beside above, which combining form means vessel? Meaning: vessel. Combining Form: aort/o. Correspondingly, what does the combining form Crin o mean? Crin/o. -root that means to secrete (to form and give off)What is the combining form that means straight?ortho- a combining form occurring in loanwords from Greek, where it meant “straight,” “upright,” “right,” “correct” (orthodox) and on this model used in the formation of compound words (orthopedic).